There are dozens of sailings from different liners on offer at the well regarded PolarCruises.com (from $4,700 for a 10-day voyage in an expedition ship to $22,906 for 22 days on a luxury liner, with vessel-wise options in itineraries, inclusions, accommodation and prices), a US-based operator specializing in trip planning to the poles they only represent ships operated by companies that are full members of IAATO, the International Association of Antarctica Tour Operators. They divide ships that carry tourists to Antarctica into four categories icebreakers (tough ships with few frills), luxury liners (no compromise on comfort, especially in the accommodation and food), expedition ships (small groups, more intimate experience, simpler lodgings) and adventure ships (to the sub-Antarctic islands and Ross Sea region, the far side with longer journeys). Seabourn.com, the US-headquartered liner on which I travelled, offers luxurious cruises to Antarctica (from $2,999 to $11,999, for voyages lasting a week to 24 days, with some itineraries including parts of South America, especially Patagonia). There&rsquos also Chile-based Victory-Cruises.com (from $4,720 to $21,499, for voyages lasting 9 to 32 days) with a clutch of sailings listed. All rates are per person on twin-occupancy. Prices vary considerably based on when you book, type of ship, itinerary, and cabin category.