Alaska and British Columbia - Inside Passage, Bears and Aleutian Islands
MS Roald Amundsen
18 days

Alaska & British Columbia – Inside Passage, Bears and Aleutian Islands

Breakfast, lunch and dinner included
Hubbard Glacier, framed by mountains
  • Discover the unmatched magnificence of coastal Alaska
  • Explore the fascinating Aleutian Islands, home of the Deadliest Catch
  • Good chance to see Brown bears
  • Experience the landscape in glorious autumn colours

Itinerary

This voyage takes us to fascinating cultures and remote polar waters to sail among glaciers while we scan for rich wildlife. Our cutting-edge hybrid ship explores islands and fjords, seeking out horned puffins, brown bears, shoreline beauty, amazing fossil forests and dramatic volcanoes.
Day 1
Vancouver
Start of the Expedition
West End is a neighbourhood in Vancouver
View of the West End, Vancouver, with beautiful waterfront parks.

Vibrant Vancouver boasts waterfront parks, nearby mountains with hiking trails in summer and skiing in winter, multitudes of cafes, shops, galleries, museums, and a diversity of cultural neighbourhoods to explore.   

Ship: MS Roald Amundsen.

West End is a neighbourhood in Vancouver
View of the West End, Vancouver, with beautiful waterfront parks.
Orcas (killer whales) in Alaska
Meet the Orcas (killer whales) in Alaska.
Photo: Christopher Michel
Day 2
At sea
Cruising Through British Columbia
Orcas (killer whales) in Alaska
Meet the Orcas (killer whales) in Alaska.
Photo: Christopher Michel

We sail north to Alaska through the narrow weaving channels and straits of Canada’s Inside Passage. Be on the lookout for dolphins, porpoise, orcas, and whales that frequent the protected inland waters.

Join our Expedition Team for fascinating lectures, spend time relaxing on board or meeting your fellow travellers.

Day 3
Ketchikan, Alaska - Full day
Ketchikan - Gateway to Alaska
Antique boardwalk, Ketchikan Creek Street, Alaska
Antique boardwalk, Ketchikan Creek Street, Alaska
Photo: Bernard Spragg

Known as the salmon capital of the world, Ketchikan is a true frontier town, surrounded by towering mountains. Colourful houses on stilts from the gold rush era line the river bank. The city is home to one of the largest collections of standing totem poles and has strong ties to Tlingit culture.

Included activity:

Alaskan Lumberjack show (1 hr)

Learn about Alaska's rich logging history through displays of strength and agility, action, excitement and laughter! World champion lumberjacks compete in 12 athletic events utilizing axes, razor sharp saws and powerful chainsaws. Your cheers will turn to roars of excitement as axes fly, men fall from tall trees, and then run atop spinning logs floating in the water.

Optional excursions
  • Included
    Ketchikan - Alaskan Lumberjack Show
    Learn about Alaska's rich logging history through displays of strength and agility, action, excitement and laughter!
  • Ketchikan - Eagles, Raptors & Rainforest Experience
    Join us for a guided rainforest trail walk to search for wildlife and experience a new presentation and exhibit about raptors, including a close encounter with a live bald eagle.
  • Ketchikan - Potlatch City Tour with Totem Bight State Park
    Experience sightseeing in the beautiful coastal community of Ketchikan on a day tour complete with historic sites and city highlights.
  • Ketchikan Historic Walking Tour
    Gain a unique understanding of Ketchikan and its Tlingit culture on this guided walking tour of Alaska’s ‘First City’.
  • Ketchikan - Bering Sea Crab Fishermen's Tour
    Step aboard a ship with a fascinating and colourful history as a commercial crab fishing boat and hear about the amazing world of Alaskan crab fishing.
  • Ketchikan - Alaskan Fishing & Wilderness Dining
    Experience the thrill of fishing in Alaskan waters before dining on your catch of the day!
  • Ketchikan - Misty Fjords Flightseeing
    Discover magnificent Misty Fjords National Monument in an impeccably maintained Alaskan bush floatplane.
Antique boardwalk, Ketchikan Creek Street, Alaska
Antique boardwalk, Ketchikan Creek Street, Alaska
Photo: Bernard Spragg
Sign welcoming you to Ketchikan, Akaska’s first city
Sign welcoming you to Ketchikan, Akaska’s first city
Photo: Greyloch
Wrangell, Alaska
Wrangell, Alaska
Photo: Rob Wynne
Eagle Totem and Clan House on Shakes Island, Wrangell
Eagle Totem and Clan House on Shakes Island, Wrangell
Photo: Gillfoto
Seals in the Harbour of Wrangell
Seals in the Harbour of Wrangell
Photo: Andrew E. Russell
Day 4
Wrangell
Soul of Alaska
Eagle Totem and Clan House on Shakes Island, Wrangell
Eagle Totem and Clan House on Shakes Island, Wrangell
Photo: Gillfoto

One of the oldest island towns in Alaska, Wrangell has been governed by four different nations – Tlingit, Russian, British and United States. Numerous petroglyphs on the beach and moss-covered totem poles manifest to the distant past of this area. Outside of the main cruise ships routes, nowadays it remains a simple fishing town.

Day 5
Sitka
Sitka, Town of Many Stories
Sunset view of the sea and islands outside Sitka, Alaska
Sunset view of the sea and islands outside Sitka, Alaska
Photo: Joseph

Sitka has beautiful scenery with snowcapped mountains, small islands, rich wildlife all around, and even a volcano in sight. A former capital of Russian Alaska, the town has historic streets featuring a Russian Cathedral and ornate totem poles.

Included activity:

Alaska Raptor Centre (45 mins)

Join us on a visit to the Alaska Raptor Center, which rehabilitates injured bald eagles and other birds of prey. See the 24 ‘raptors-in-residence’, including bald and golden eagles, hawks, falcons and owls, and learn about their habitats and how they came to be permanent residents at the Center.

Optional excursions
  • Included
    Sitka - Alaska Raptor Centre
    Join us on a visit to the Alaska Raptor Center, which rehabilitates injured bald eagles and other birds of prey
  • Sitka Cultural Discovery
    Explore the historical highlights and heritage of Sitka, a former Russian capital city, on a unique, fully-narrated sightseeing journey that includes a tour through Sitka National Park and folk dancing presentation.
  • Sitka Kayak Adventure
    Enjoy a fully guided kayaking adventure exploring Sitka Sound’s spectacular scenery and marine life.
  • Sitka - Sea Otter, Raptors & Bears
    This unforgettable tour provides the opportunity to experience all three of Sitka’s most popular wildlife viewing experiences.
  • Sitka - Wildlife Quest and Fin Island Lodge
    The ultimate Alaska experience begins as soon as you board this expedition vessel in Sitka. Experience a magnificent scenic cruise followed by a delicious Alaskan feast!
  • Sitka - Alaska Zodiac Adventure & Fin Island Lodge
    Explore the waters and islands surrounding Sitka in a Zodiac and get a taste of real Alaska adventure before indulging a true Alaskan feast!
Sunset view of the sea and islands outside Sitka, Alaska
Sunset view of the sea and islands outside Sitka, Alaska
Photo: Joseph
A Russian cathedral in Sitka, former capital of Russian Alaska
A Russian cathedral in Sitka, former capital of Russian Alaska
Photo: Barek
Hubbard Glacier, framed by mountains
Photo: NPS Photo
Hubbard Glacier, the largest tidewater glacier in North America
Hubbard Glacier, the largest tidewater glacier in North America
Photo: Bernard Spragg
Day 6
Hubbard Glacier - Half day
Magnificent Iceberg Cruising
Hubbard Glacier, framed by mountains
Photo: NPS Photo

This waterway that hosts the Hubbard Glacier was named Disenchantment Bay by Spanish naval officer Alessandro Malaspina in 1792, when he was disappointed to discover it was not the Northwest Passage, as he had hoped.  We trust that you will be enchanted, maybe even spellbound, by the beautiful icescape here.

Day 7
At sea
At Sea in the Gulf of Alaska
Orcas (Killer whales) in Alaska
Spend time on deck, on the lookout for Orcas (Killer whales).
Photo: Jim Pfeiffenberger

A day at sea means you can join the lectures by the Expedition Team, spend time on deck or in the Panorama Lounge with fellow travellers as we sail towards Alaska’s Panhandle.

Orcas (Killer whales) in Alaska
Spend time on deck, on the lookout for Orcas (Killer whales).
Photo: Jim Pfeiffenberger
Beach between Lake Gertrude and the ocean at Fort Abercrombie
Beach between Lake Gertrude and the ocean at Fort Abercrombie.
Photo: NAQL
Whale watching from Kodiak Island
Whale watching from Kodiak Island.
Photo: Christopher Michel
Fort Abercrombie State Historic Park
Fort Abercrombie State Historic Park.
Photo: NAQL
Day 8
Kodiak - Full day
Close to Wildlife
Whale watching from Kodiak Island
Whale watching from Kodiak Island.
Photo: Christopher Michel

When visiting bustling Kodiak, take a walk to Fort Abercrombie State Historic Park to combine history with wildlife spotting. Stop for a while on the cliff edge of Miller Point and watch the sea for the chance to see whales.

Included activity:

Town Package with Museum (2 - 4 hrs)

Enjoy a stroll through the city of Kodiak, home to the USA’s largest Coast Guard base, and see the Russian Orthodox Church and Seminary. Visit the Kodiak History Museum and the Alutiiq Museum, with its impressive collection derived from 7,500 years of Alutiiq heritage.

Optional excursions
  • Included
    Kodiak - Town Package with Museum
    Enjoy a stroll through the city of Kodiak, home to the USA’s largest Coast Guard base, and see the Russian Orthodox Church and Seminary.
  • Kodiak Sightseeing & Wildlife Cruise
    Welcome aboard one of our comfortable and well-equipped sightseeing tour boats and enjoy an extensive expedition around the Kodiak archipelago - an opportunity unique to the ‘Last Frontier’.
  • Kodiak & Afognak Island Flightseeing
    Join us for an amazing aerial experience and the best way to see the majestic Kodiak Archipelago.
Day 9
Kinak Bay
Seeking out Brown Bears
Bears foraging at Katmai National Park´s Valley of Ten Thousand Smokes
Bears foraging at Katmai National Park´s Valley of Ten Thousand Smokes.
Photo: Katmai National Park and Preserve

Katmai National Park´s Valley of Ten Thousand Smokes is a dramatic volcanic landscape, with mountains rising to almost 915 meters (3,000 feet). Here we hope to find brown bears as they forage along the shore for clams, and lunch on berries or fish in the clear running waters of the mountain streams.

Bears foraging at Katmai National Park´s Valley of Ten Thousand Smokes
Bears foraging at Katmai National Park´s Valley of Ten Thousand Smokes.
Photo: Katmai National Park and Preserve
Curious bears in green landscape
Curious bears await near Katmai National Park.
Photo: Lisa Hupp
Beautiful mountains surrounding Chignic.
Beautiful mountains surrounding Chignic.
Photo: Alamy
Great fishing in Chignic.
Great fishing in Chignic.
Photo: Alamy
Sockeye Salmon.
Sockeye Salmon.
Photo: shutterstock
Day 10
Chignik
Where the Aleutian Mountains meet the Gulf of Alaska
Great fishing in Chignic.
Great fishing in Chignic.
Photo: Alamy

In the small village of Chignik Bay, red salmon fishing has been the core of the community’s economy for over a century. Stop in at the fish factory, meet the welcoming locals, or explore the salmon streams in the scenic surroundings. Scan the shores to spot the 20-or-so waterfowl species, or the skies for bald eagles.

Day 11
Unga Village - Full day
Ghost Town
A large body of water with a mountain in the background
Photo: Joseph/Flickr

Unga Village is an eerie ghost town with picturesque village ruins. Settled by Aleuts in 1833, subsistence fishing proved insufficient to support the community, which moved to Sand Point in 1969. Today, a collection of wooden buildings is all that remains, surrounded by a carpet of pink louseworts.

A large body of water with a mountain in the background
Photo: Joseph/Flickr
A boat on a body of water with a mountain in the background
The popular TV show `Deadliest Catch´ is based in Dutch Harbour, featuring local fishing crews.
Photo: James Brooks
Fishing boats, Dutch Harbor
Fishing boats, Dutch Harbour.
Photo: Joseph
Volcanic peak of Mount Makushin
Volcanic peak of Mount Makushin.
Photo: Allan Shimada
Day 12
Dutch Harbor - Half day
The Toughest Job in the World
Fishing boats, Dutch Harbor
Fishing boats, Dutch Harbour.
Photo: Joseph

As we sail towards Dutch Harbor, you will see Mount Makushin, a steaming volcano almost 6,000 feet high. The popular TV show `Deadliest Catch´ is based here, featuring local fishing crews. Stroll around the town, stop in at the Museum of the Aleutians and take a look at the local Russian Orthodox Church. 

Included activity:

Hop on / Hop off Around the Town (1 - 4 hrs)

Visit the famous fishing town of Dutch Harbor, the scene of a World War II battle in June 1942. Ride local school buses to see such landmarks as the WWII Museum, the Grand Aleutian Hotel, Memorial Park and the Russian Orthodox Church. You can also visit the compelling Museum of the Aleutians with exhibits featuring the varied facets of this fascinating archipelago.

Optional excursions
  • Included
    Dutch Harbor - Hop on / Hop off Around the Town
    Visit the famous fishing town of Dutch Harbor, the scene of a World War II battle in June 1942.
  • Dutch Harbour - Bunker Hill Hike
    Join us for an enjoyable guided hike to the top of Bunker Hill for spectacular views and rich history!
Day 13
At sea
Lectures and Relaxing
Birdwatching from the ship
Birdwatching from the ship.
Photo: Kaitlin Thoresen

MS Roald Amundsen continues north through the Bering Sea, from the Aleutian Islands and towards our next stop of St. Paul. The Expedition Team will prepare you for our upcoming destinations and continue their lecture series. 

Birdwatching from the ship
Birdwatching from the ship.
Photo: Kaitlin Thoresen
Seals near the village of Saint Paul, Alaska
Seals near the village of Saint Paul, Alaska.
Photo: Bill Briggs
Tufted puffins, St. Paul Island, Alaska
Tufted puffins make this area a bird lovers' paradise.
Photo: Isaac Sanchez
Day 14
St. Paul - Full day
The Galapagos of the North?
Seals near the village of Saint Paul, Alaska
Seals near the village of Saint Paul, Alaska.
Photo: Bill Briggs

This area is a bird lovers’ paradise! Horned and Tufted puffins are found here, along with the rare Red-legged kittiwake. The 400 islanders descend from Aleut slaves forcibly moved to the island by Russian fur traders in 1780’s.  Today, the seal population is thriving, around half the world’s northern fur seal population live in the waters around the island.

Day 15
St. Matthew Island - Half day
Deserted Island
A close up of a snow covered mountain
Photo: Kevin Schafer

As we step ashore on the black sand and gravel beaches of St. Matthew Island, we will be the only humans on the isle.  St. Matthew has been a nature reserve since 1909 and is home to countless nesting seabirds as well as the native St. Matthew island vole and the Arctic fox.  

A close up of a snow covered mountain
Photo: Kevin Schafer
Whale watching from deck
Whale watching from deck.
Photo: Kaitlin Thoreson
Day 16
At sea - Bering Sea
Relax at Sea
Whale watching from deck
Whale watching from deck.
Photo: Kaitlin Thoreson

Enjoy a relaxing last day on board!  Take time on deck to look out for whales.  Onboard, the Expedition Team will recap your voyage and you can spend time chatting with new friends, or just relax and watch the world sail by! 

Day 17
Nome
Gold Rush History
A small wooden house from the gold rush era, Nome
A small wooden house from the gold rush era in Nome.
Photo: Jerry Kirkhart

In 1898, gold was discovered in Nome, at nearby Anvil Creek, and within a year, 10,000 men had arrived to seek their fortune.  Our ship expedition ends in this colourful gold rush town.  Transfer to the airport and flight to Vancouver for an overnight stay.

A small wooden house from the gold rush era, Nome
A small wooden house from the gold rush era in Nome.
Photo: Jerry Kirkhart
Abandoned locomotive from the gold rush era in Alaska
Abandoned locomotive near Nome.
Photo: Gregory Smith
Lions Gate Bridge, Vancouver
Lions Gate Bridge, Vancouver
Day 18
Vancouver
End of the Expedition
Lions Gate Bridge, Vancouver
Lions Gate Bridge, Vancouver

Enjoy the sights of this lively city or extend your stay with our Post-Programme before you fly home. 

Hurtigruten offers unique expedition cruises to some of the most remote and pristine waters of the world. As with all expeditions; nature prevails. Weather, and ice and sea conditions, sets the final framework for all Hurtigruten’s operations. Safety and unparalleled guest experiences are at all times our top priorities. All our indicative itineraries are continuously evaluated for adaptions, whether this is due to constraints the elements unexpectedly presents – or exciting possibilities nature and wildlife offer. That is why we call it an expedition.
Check prices and availability

What's included

Included in your voyage

  • Hurtigruten Expedition Cruise in cabin grade of your choice
  • Transfer from ship to airport in Nome
  • Economy flight from Nome to Vancouver
  • Transfer airport to hotel in Vancouver
  • One hotel night in Vancouver after the voyage incl. breakfast

EVERYTHING YOU NEED FOR AN ADVENTURE

  • rich programme of included activities on all voyages designed to immerse you in the destinations you visit, including onshore exploration with the Expedition Team  
  • Professional English-speaking Expedition Team - an international handpicked team of highly educated experts of various academic fields with profound knowledge of the region we sail in  
  • Complimentary wind- and water-resistant jacket
  • Loan of boots, trekking poles, and equipment needed for optional and included activities 

ENGAGING ONBOARD ACTIVITIES AND EDUCATION

  • In-depth lectures on science, history, biology, geography, geology or culture that provide context to your voyage and help you understand the destinations you will experience  
  • Explorer Science programme, with educational and Citizen Science activities that let you learn about the sights you’ll see while contributing to research
  •  Introduction photo lecture, camera adjustment and tips & tricks, photo and film footage from the voyage shared in an Expedition Logbook
  • Casual opportunities to engage with the Expedition Team and other guests, including a welcome event, daily gatheringsto recap the day and prepare for the day to come
  • Opportunities to dine and interact with the Expedition Team and officers  
  • Destination-focused onboard library  
  • Port presentations providing destination insight
  • farewell event  

PREMIUM ONBOARD COMFORT

  • All meals including beverages (ship beer and wine, sodas and mineral water in all restaurants)
  • Coffee and tea included throughout the day
  • Early riser and afternoon treat offered in addition to breakfast, lunch and dinner
  • Fredheim restaurant meals included 
  • A la carte restaurant (only for suite guests) 
  • Gym, hot tubs and panoramic sauna
  • Rejuvenating wellness areas with separate treatment rooms, infinity pool, outdoor gym, running track 
  • Free Wi-fi on board for all guests. Be aware that we sail in remote areas with limited connection. Streaming is not supported.
  • No gratuities expected   

Not included in your voyage

  • International flights  
  • Optional shore excursions with our local partners 
  • Optional small-group adventures with our Expedition Team such as kayaking (availability pending weather conditions and safety)
  • Travel insurance
  • Luggage handling  

Notes

  • Visa for US and Canada (ESTA/ETA) required - for details please see Visa information in our Entry requirements
  • This cruise is not suitable for guests using wheelchairs due to the possibility of using tender boats during embarkation or disembarkation.
MS Roald Amundsen
Science Center
Photo: Agurtxane Concellon
A small boat in a large body of water

Your ship

MS Roald Amundsen

Year built 2019
Shipyard Kleven Yards
Passenger capacity 530 (500 in Antarctica)
Gross tonnage 20 889 T
Length 140 m
Beam 23,6 m
Speed 15 knots
MS Roald Amundsen

In 2019, Hurtigruten added a brand new ship to its fleet: the MS Roald Amundsen. The state of the art vessel features new and environmentally sustainable hybrid technology that will reduce fuel consumption and show the world that hybrid propulsion on large ships is possible.

Read more about MS Roald Amundsen

Aune Restaurant, MS Roald Amundsen
Photo: Espen Mills

Optional excursions

Some expedition cruises include excursions that can be reserved for no additional charge. These included excursions can often be combined with other excursions available in port.

Please note excursions are subject to change and are not yet available for booking for departures after March 2021.

A hand holding a piece of wood A hand holding a piece of wood

Ketchikan - Alaskan Lumberjack Show

Alaska

Duration

1hr

Price per person

Free – please reserve

Booking code

INCL-KTN1

See excursion
A close up of a bird A close up of a bird

Ketchikan – Eagles, Raptors & Rainforest Experience

Alaska

Duration

3hrs

Price per person

From $ 187

Booking code

A-KTN11

See excursion
A sign in front of a tree A sign in front of a tree

Ketchikan - Potlatch City Tour with Totem Bight State Park

Alaska

Duration

3 hours

Price per person

From $ 93

Booking code

A-KTN2

See excursion
A bridge over a body of water A bridge over a body of water

Ketchikan - Ketchikan Historic Walking Tour

Alaska

Duration

1 hours 30 min

Price per person

From $ 74

Booking code

A-KTN4

See excursion
A group of people on a boat posing for the camera A group of people on a boat posing for the camera

Ketchikan - Bering Sea Crab Fishermen's Tour

Alaska

Duration

3 hours 15 min

Price per person

From $ 224

Booking code

A-KTN5

See excursion
A man standing next to a body of water A man standing next to a body of water

Ketchikan – Alaskan Fishing & Wilderness Dining

Alaska

Duration

5hrs

Price per person

From $ 449

Booking code

A-KTN12

See excursion
A plane in the water A plane in the water

Ketchikan – Misty Fjords Flightseeing

Alaska

Duration

2h15

Price per person

From $ 431

Booking code

A-KTN8

See excursion
A close up of a bird A close up of a bird

Sitka - Alaska Raptor Centre

Alaska

Duration

45 min

Price per person

Free �� please reserve

Booking code

INCL-SIT1

See excursion
A small clock tower in front of a house A small clock tower in front of a house

Sitka - Sitka Cultural Discovery

Alaska

Duration

2 hours 30 min

Price per person

From $ 93

Booking code

A-SIT2

See excursion
A small boat in a body of water A small boat in a body of water

Sitka Kayak Adventure

Alaska

Duration

2 hrs

Price per person

From $ 168

Booking code

A-SIT3

See excursion
A dog swimming in a body of water A dog swimming in a body of water

Sitka - Sea Otter, Raptors & Bears

Alaska

Duration

5 hours

Price per person

From $ 187

Booking code

A-SIT4

See excursion
A brown bear standing next to a body of water A brown bear standing next to a body of water

Sitka - Wildlife Quest and Fin Island Lodge

Alaska

Duration

3 hours 30 min

Price per person

From $ 280

Booking code

A-SIT5

See excursion
A close up of an animal A close up of an animal

Sitka – Alaska Zodiac Adventure & Fin Island Lodge

Alaska

Duration

3h45

Price per person

From $ 243

Booking code

A-SIT6

See excursion
A boat is docked next to a body of water A boat is docked next to a body of water

Kodiak - Town Package with Museum

Alaska

Duration

2 - 4 hrs

Price per person

Free – please reserve

Booking code

INCL-ADQ1

See excursion
A large body of water with a mountain in the background A large body of water with a mountain in the background

Kodiak - Kodiak Sightseeing & Wildlife Cruise

Alaska

Duration

2h30

Price per person

From $ 412

Booking code

A-ADQ4

See excursion
A large mountain in the background A large mountain in the background

Kodiak - Kodiak & Afognak Island Flightseeing

Alaska

Duration

2hrs

Price per person

From $ 562

Booking code

A-ADQ5

See excursion
A blue and white boat sitting next to a body of water A blue and white boat sitting next to a body of water

Dutch Harbor - Hop on / Hop off Around the Town

Alaska

Duration

1 - 4 hrs

Price per person

Free – please reserve

Booking code

INCL-DUT1

See excursion
A view of a snow covered mountain A view of a snow covered mountain

Dutch Harbor - Bunker Hill Hike

Alaska

Duration

2 hrs

Price per person

From $ 74

Booking code

A-DUT1

See excursion

Extend your cruise

Get more out of your journey by adding a Pre- or Post-programme before or after your expedition cruise.

A train traveling down tracks next to a body of water A train traveling down tracks next to a body of water

Rocky Mountaineer and Vancouver: Pre-Programme

North America, Northwest Passage

Duration

7 Days

From

$ 5552

Booking code

YVRROCKPREB/YVROCKPRED

See program
A bridge over a body of water with a city in the background A bridge over a body of water with a city in the background

Vancouver: Pre-Programme

North America

Duration

2 Days

From

$ 734

Booking code

YVRPREA

See program
A view of a city at night A view of a city at night

Whistler & Sea to Sky Gondola: Post-Excursion

North America

Duration

9 Hours

From

$ 298

Booking code

YVR04

See program
Check prices and availability