One of the best snorkeling sites in the Hawaiian Islands is the very accessible Makaha Beach Park, located on the leeward side of Oahu. Visibility runs 100 feet or more. Whether snorkeling at the park beach or at some of the outlying reefs, you'll spot plenty of fish, sponges, and corals, with a chance to see spotted eagle rays, green sea turtles (which grow up to 400 pounds), and resident spinner dolphins. (Beware that in winter, surf may prevent swimming.)
For more information: Wild Side Specialty Tours 
