The most important national park in Costa Rica, not only because its the most visited, although is one of the few in the world that protect both, inland and ocean portion, thats gives it a special touch, in terms of the wildlife, rainforest, as well as the fact that it offers pristine white sand beaches, perfection for a a trip that starts in observation of the wildlife and ends with the possibility of a splash in a paradisiac and protected beach.
Among the vast possibilities of seeing really cool species, Manuel Antonio national park is one of the spots where, if you are lucky and being well guided have a huge change to spot in one trip more than one variety of sloths, monkeys and other animals that can take easy a few days to be watched for a professional eye in 3 or 4 days.