The Big Island, Hawaii

Although the entire Hawaiian archipelago is dotted with incredible snorkeling spots, the Big Island has the most to offer. At its underwater state park, Kealakekua Bay, snorkelers will see technicolor coral and colorful fish. Plan to hit the water near the Captain Cook Monument to see dolphins, turtles, and more.

Buck Island, St. Croix

Snorkel between the elkhorn coral barrier reefs under Buck Island’s brilliant blue waters and follow colorful parrot fish along an underwater rail through this sunken national treasure in the US Virgin Islands. The gentle waters found here are also ideal for beginning snorkelers.

Komodo Island, Indonesia

Giant lizards may call this island home, but Komodo also has some fascinating inhabitants beneath the water’s surface. Head to Pink Beach to swim with rays, schools of groupers, and hawksbill turtles in the undersea garden that grows there. Over 1,000 species of fish, 260 types of coral, and 14 types of endangered whales, dolphins, and giant turtles can be spotted here.

Ambergris Caye, Belize

Ambergris Caye is home to the largest barrier reef outside of Australia. In fact, it’s a whopping 185 miles long! Belize offers snorkelers many opportunities to get up close and personal with eels, rays, and all kinds of brightly colored fish. The Hol Chan Marine Reserve and shark-ray alley are must visit spots for divers and snorkelers alike.

Ilha Grande, Brazil

Halfway between Sao Paolo and Rio de Janeiro sits the wilderness wonderland of Illha Grande. Although there are hotels on the island, it feels largely untouched with monkey-filled jungles surrounded by brilliant blue waters and colorful fish. Swim with seahorses in the warm waters of the Blue Lagoon and ogle at underwater coves. Dozens of shipwrecks can also be explored off of Illha Grande.