The first day of our trip found us in the southernmost peninsula on the Pacific coast of Costa Rica:  the Osa Peninsula.  Isolated from the rest of the country for many years because of its remoteness, the peninsula preserves one of the best kept pieces of rainforest in the Meso American region.  Considered one of the most biodiverse places in the world, we were lucky enough to explore it both in the morning and afternoon.  Caletas Bay greeted us early for various activities such as horseback riding, a power walk, a long forest trail and a premises walk.  Contrary to popular knowledge, leaf-cutter ants can be really interesting!  In the afternoon we took off to Corcovado National Park, a 42,000-hectare piece of rainforest preserved since the 1980s.  We could do two activities:  walk to a waterfall and take a dip in it, or walk a flatter terrain trail parallel to the beach and search for wildlife.  Howler monkeys, spider monkeys, horses, leaf cutter ants and army ants were waiting to be spotted.