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Polar ice shelves dwarf the Sea Spirit

Cruises Operated by Poseidon Expeditions

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Experience cruise tailored to adventurous and discerning travelers. With 4 unique itineraries available between 2025 and 2027, guests can explore top destinations like Antarctica Peninsula, South Georgia, Drake Passage, South Shetland Islands, and Falkland Islands, while enjoying curated activities such as Kayaking, Photography Seminars, Whale Watching, and Wildlife Viewing. Whether you prefer short getaways or extended explorations, trips range from 21 days to 23 days, with pricing from $16,695 to $47,495. is known for exceptional service, small-ship intimacy, and flexible policies designed to ensure a smooth travel experience. Ideal for solo travelers, couples, or small groups, cruises in 2025 and 2026 offer a perfect blend of comfort, discovery, and unforgettable memories.
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Rockhopper penguins
from $16,695
EXPLORE

Antarctic Wildlife Adventure

Ushuaia to Buenos Aires - 23 Day Itinerary aboard Sea Spirit
  • Join this ultimate wildlife cruise
  • Discover incomparable landscapes
  • Visit Shackleton's resting place
  • Explore Stanley, Falkland Islands
Starts / Ends
Port of Ushuaia / Buenos Aires
Activity Level
Variable
Embark on a 23-day expedition cruise from Ushuaia to Buenos Aires aboard the Sea Spirit, exploring stunning Antarctic landscapes and diverse wildlife like penguins and seals. Visit South Georgia and the Falkland Islands before concluding your journey with a scenic sail across the South Atlantic.
Cruise Details
0
A whale comes up to say hello
from $17,195
EBD 15
EXPLORE

Antarctic Wildlife Adventure

Ushuaia to Buenos Aires - 23 Day Itinerary aboard Sea Spirit
  • Join this ultimate wildlife cruise
  • Discover incomparable landscapes
  • Visit Shackleton's resting place
  • Explore Stanley, Falkland Islands
Starts / Ends
Port of Ushuaia / Buenos Aires
Activities
Photography Seminars, Wildlife Viewing, Whale Watching, Kayaking
Activity Level
Variable
Embark on a 23-day expedition cruise aboard the Sea Spirit from Ushuaia to Buenos Aires, exploring vibrant cities and diverse wildlife, including penguins and whales. Discover the breathtaking landscapes of the Antarctic Peninsula, South Georgia Island, and the bird-filled Falkland Islands before concluding your journey across the South Atlantic.
Cruise Details
0
An ocean of icebergs.
from $17,495
EXPLORE

Antarctic Wildlife Adventure

Roundtrip Ushuaia - 21 Day Itinerary aboard Sea Spirit
  • Explore Ushuaia’s scenic waterfront
  • Sail Beagle Channel’s waters
  • Discover Falkland landscapes
  • Experience Stanley’s ambiance
Starts / Ends
Port of Ushuaia / Port of Ushuaia
Activity Level
Variable
Embark on a 21-day expedition cruise aboard the Sea Spirit, starting in Ushuaia and exploring the Falkland Islands and South Georgia, where you can see king penguins and historic whaling sites. Experience the Antarctic Peninsula's stunning landscapes and wildlife before a memorable Drake Passage crossing.
Cruise Details
0
A group of penguins in the Falkland Islands
from $19,795
EBD 15
EXPLORE

Antarctic Wildlife Adventure

Roundtrip Ushuaia - 21 Day Itinerary aboard Sea Spirit
  • Cross Southern Ocean’s expanse
  • Observe South Georgia’s wildlife
  • Visit Grytviken’s whaling station
  • Explore Ushuaia’s scenic waterfront
Starts / Ends
Port of Ushuaia / Port of Ushuaia
Activity Level
Variable
Embark on a 21-day cruise aboard the Sea Spirit, starting in Ushuaia and exploring the Falkland Islands and South Georgia, home to diverse wildlife. Navigate the Antarctic Peninsula's stunning landscapes and complete your journey with the iconic Drake Passage crossing.
Cruise Details
0
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