Sea Spirit

Poseidon Expeditions announced it is adding seasonal offers to its small-ship explorations of Antarctica, according to a statement.

Working from a base of $9,195 per person, double, for a 250-square-foot Main Deck Suite, savings of $2,000 per person are available for all double-occupancy categories for two 12-day/11-night Antarctic Peninsula voyages: Nov.24-Dec.5 and Dec. 4-15, 2017. These savings are also in effect for the Dec.14-25, 2017 departure, with rates starting at $10,195 per person aboard the Sea Spirit.

Guests looking for a longer adventure can also save $2,000 per person on the 14-day/13-night Wildest Antarctic voyage, where rates start at just $11,995 per person, double.