Diving Service Hekikai

Snake Hole, on the west coast of Irabu Island, Okinawa, is a favorite among topography divers. The cave sits at 5–8m depth, with a 4m-wide, 10m-deep chamber. Inside the air dome, shifting pressure from waves can create a fog-like effect, producing an eerie and beautiful underwater scene.

Crystal Park on Shimoji Island, Okinawa, is a shallow site (max 10m) with coral heads scattered across pure white sand. Its clear blue water and sparkling light make it ideal for relaxed dives, where you can see schools of snappers, juvenile fish, and macro life. Best season: fall to spring.

Shiratorizaki on Irabu Island features varied topography, including 30m-deep Denter Rock and the light-filled Shiratori Hole. Rich in marine life, it offers pygmy seahorses, nudibranchs, and seasonal encounters with manta rays, whitetip sharks, sea turtles, and other large fish—great for all diver levels.

Kushima Beach on Kushima Island, Miyako, offers a shallow sandy slope (\~6 m) dotted with coral heads and colorful fish like devilfish and clownfish. Easy entry/exit makes it ideal for try-dives, training, and night dives. Suitable year-round except during strong northerlies.

The L-shaped Arch on Irabu Island is a dramatic site featuring a massive curved arch reaching depths of 35m, ideal for intermediate divers and above. Expect encounters with giant jacks, dogtooth tuna, and macro life like red clownfish and crustaceans in the nearby Warp Hole cave.

Twin Cave is a mid-depth dive site (18–20m) featuring two interconnected cave entrances. Light filtering through creates a stunning blue curtain effect, adding a mystical feel. Schools of fish are often seen inside. Best suited for intermediate to advanced divers seeking topographic beauty and light contrast.