Poseidon Expeditions runs its Antarctic program aboard the 114-passenger M/V Sea Spirit, one of the smaller ice-strengthened ships currently operating in the region, and its guests typically get up to three Zodiac landings a day rather than waiting through group rotations common on larger vessels.
Key takeaways:
- Poseidon Expeditions has operated Antarctica voyages since 1999 and has been an IAATO member since 2011.
- Fleet size varies widely across the niche,
