Things to Do in Okinawa in 2026 – Tours & Activities | VELTRA Discover the vibrant marine life and crystal-clear waters of Okinawa with our top-rated snorkeling tours across the islands. From the famous Blue Cave near Cape Maeda to the stunning Kerama Islands, Barasu Island, Hamajima (Phantom Island), and Miyakojima, there's a perfect spot for every snorkeler—beginner or experienced. Swim with sea turtles, explore coral reefs, and enjoy combo tours with kayaking, SUP, and more. Ideal for families, couples, and ocean lovers of all ages!