When To Go
Cruises operate between late October and the end of March. Each month has its own characteristics and nuances, so there's no real 'best time' to visit, however there is a high season and shoulder season.
High season is late December to early February when days are long, the weather is the most stable and wildlife the most active. However, spring (late October and November) has lots of offer, with heavier ice and the chance of being one of the first down to Antarctica for that year. Later in the season, the softer light of March is excellent for photographers, and you've got higher chances of whale sightings.