I have visited Costa Rica numerous times and one of my most favorite activities is sailing on Blue Dolphin. The sunset/snorkel trip is the best...amazing scenery, glorious sunsets, food and drink, fun, fun, fun. And always something different to see (sting rays, dolphins and on my last trip, two humpback whales, a mama and baby). The highly professional crew makes sure everyone is having a good time, no matter what your age. I plan to do this again and again.