Originally Posted by
daysleeper
One more reason to take a tour with a small ship: It can go to places where a large ship isn't allowed to. Due to environmental regulations 100 pax may be allowed to land on island X by zodiac where a larger ship with 200 pax onboard is not.
I noticed that Abercrombie & Kent's new ship, Le Boreal, can carry more people but caps Antarctic cruises at 199 passengers. I'm sure that's a factor.