Activities · Destination Guide
Japan's subtropical hub for reefs, caves, whales, and island hopping
Updated Nov 21, 2025 • 9 sources
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Okinawa combines easy shore dives, clear national park reefs, and serious blue water adventures. On the main island you can drop into soft coral gardens at Sunabe Seawall, explore the Blue Cave and Cape Maeda, or run north to Sesoko and Motobu. Daily boats from Naha, Chatan, and Onna run to Kerama National Park for multi dive trips over coral walls, bommies, and sea turtle cleaning stations. With a bit more time you can connect via Naha to Ishigaki for mantas, Miyako for caverns, or Yonaguni for winter hammerheads and the underwater Monument, all while staying inside Japan's reliable safety and transport systems.
A classic Chatan shore site with steps straight into the water, Sunabe Seawall is nicknamed the underwater flower garden for its dense soft corals, anemones, and macro life, all between about {{ 5 | distance:m }} and {{ 20 | distance:m }}.
A Kerama Islands favorite with coral ridges stepping down to around {{ 25 | distance:m }}, frequent turtles, and usually gentle current, making it a relaxed national park showcase for Open Water divers.
Okinawa's iconic cavern at Cape Maeda glows an electric blue when sunlight reflects off the sandy bottom into the chamber.
Just beyond the Blue Cave entrance, Cape Maeda drops from shallow reef into walls covered in soft coral and sponges, with frequent schooling fish and occasional pelagics on outgoing tide.
An advanced Kerama site where ridges, channels, and drop offs funnel current and schooling fish.
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