Costa Rica's underwater wonders range from coastal coral reefs to offshore islands. These varied dive spots contain diverse and beautiful marine life that includes giant Manta Rays, timid sea turtles, colorful angel fish, intricate coral formations, psychedelic sea slugs, spiny puffer fish, delicate sea fans, curious dolphins and, on rare occasions, whales.

Though the country's waters contain enough marine life to please the most experienced of divers, you need be little more than a curious swimmer to catch a glimpse of some of its underwater sights, since there are plenty of spots that are perfect for snorkeling. Costa Rica is also an excellent place to learn how to scuba dive, since most dive centers offer inexpensive certification courses in English that can be completed in less than a week.