We were looking at Atlas Antarctica cruises earlier this week - our question is how stable (how seasick would I be) in a ship that small in that area? We've sailed smaller ships (R class, Seabourn) and it's not usually a problem, but that distance and length of time in a well known "turbulent" area worries us a little. The ships & itineraries look nice, though! (your trip looks great, but we're thinking about 2028 - "milestone birthday" year)