Snorkeling in Hawaii is one of those experiences that stays with you long after you’ve dried off. The islands’ warm, clear waters are home to coral reefs teeming with tropical fish, sea turtles, and a variety of other marine life. Whether you’re a beginner testing out your first mask or a seasoned snorkeler chasing reef walls, Hawaii offers some of the best snorkeling conditions in the world. But before you grab your fins and jump in, it helps to understand what makes each island unique, how to snorkel safely, and how to protect the fragile ecosystems beneath the surface. Read our complete guide to making the most of snorkeling during your visit to the Hawaiian Islands.