Seven-Colored Coral Reefs Glimmering from a Glass-Bottom Boat
About this spot
Located in the northwest of Ishigaki Island, this is the island's most iconic scenic destination. White sandy beaches give way to green islets dotting the horizon, and the sea's color shifts constantly with the tides and sunlight, earning the poetic name "the seven-colored sea." Designated as a National Scenic Spot and awarded three stars in the Michelin Green Guide, this is a bona fide natural masterpiece. While strong currents make swimming unsafe, glass-bottom boats shine here, offering close-up views of coral reefs and vibrant tropical fish through their transparent hulls. Black pearl farming also flourishes in the bay, and the vista from the elevated vantage points resembles a classic Ishigaki Island postcard.
Tips
Glass-bottom boat operations depend on daily sea conditions, and visibility changes with the tides. Sea colors are most vivid when the sun is high; morning hours on clear days offer the best photo opportunities. The path to viewing spots includes some uphill sections, so wear comfortable walking shoes. Sun exposure is intense—don't forget a hat and sunscreen.
Best time to visit
Allow approximately 1 hour 30 minutes. On clear mornings, the sea's color shines most brilliantly.
Access & map
Kabira Bay (川平湾), Ishigaki Island
Model course featuring this spot
Ishigaki Island: Kabira Bay and Limestone Caves - Emerald Sea and Island Time
Okinawa
Explore features & model courses
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