CruiseTravel

Poseidon Expeditions · Sea Spirit

Realm of Penguins & Icebergs: Antarctic Peninsula

December 8, 2026December 19, 2026·11 nights·114 guests

Year Built1991
Tonnage4,200 GT
Pools0
From$9,295/perpersonSolo from $18,590

What's Included

Wi-Fi
All Excursions

Not included

All Drinks
Gratuities
Specialty Dining
Room Service
Port Shuttle
Flights
Airport Transfers

About the Ship

Hot Tubs
1
Elevators
2
Cabin Voltage
110V & 220V
USB in Cabins
Yes
Pets
Not Allowed
Service Animals
Case by Case
Dress Code
Casual
Formal Nights
No
Balcony Smoking
Not Allowed
Accessible Cabins:2
Medical Center
Dietary Options
Gluten-FreeVegan

Your Journey

Day 1Ushuaia

The world's southernmost city and primary gateway for Antarctic expedition cruises.

Day 2At Sea
Day 3At Sea
Day 10At Sea
Day 11Ushuaia

The world's southernmost city and primary gateway for Antarctic expedition cruises.


Before you sail — hotels in Ushuaia

Arrive a day early and explore Ushuaia before boarding


Cabin Pricing


Reviews & AI Summary

4.5
Ship rating

The Sea Spirit is Poseidon Expeditions' intimate all-suite vessel carrying just 114 passengers, originally built in 1991 and continuously upgraded including the addition of Rolls-Royce Zero Speed Stabilizers for smoother polar navigation. Every cabin faces outward and many feature private step-out balconies — rare on a ship this size — giving guests a front-row view of Antarctic icebergs and Arctic wildlife from their own stateroom.

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