Summer Diving in the Kerama Islands: The Best Dive Sites to Explore During Okinawa's Finest Season
teriyakidiverzWhen people think of diving in Okinawa, the Kerama Islands are often the first destination that comes to mind—and for good reason.
Summer is widely considered the best season to explore these world-class waters. Sea temperatures rise to a comfortable 28–30°C (82–86°F), visibility frequently reaches 30–40 meters (100–130 feet), and the famous Kerama Blue is at its most vibrant beneath the bright tropical sun.
Another advantage of diving in summer is the variety of dive sites available. With calmer seas and seasonal wind patterns, boats can often reach spectacular sites that are less accessible at other times of the year. From thrilling drift dives and dramatic underwater caves to pristine coral reefs and endless white sand, every dive offers a completely different experience.
Here are four of our favorite summer dive sites in the Kerama Islands.
Kuroshima Twin Rocks – An Exciting Drift Diving Adventure
If you're looking for adrenaline and big-fish action, Kuroshima Twin Rocks is one of the highlights of summer diving in the Kerama Islands.
This site features two massive rock formations surrounded by open blue water, making it perfect for drift diving. As you glide effortlessly with the current, enormous schools of fusiliers often gather around the reefs, attracting predators such as bluefin trevally and dogtooth tuna.
Whitetip reef sharks are frequently seen resting beneath the rocky ledges, and on especially lucky dives, hammerhead sharks occasionally make an appearance.
For experienced divers who love current, pelagic fish, and dramatic underwater scenery, this is a dive you'll never forget.
Chishi – Sunlight, Caves, and Stunning Underwater Landscapes
Located on the northern side of Zamami Island, Chishi is one of the Kerama Islands' most iconic topography dive sites.
Its impressive underwater cavern becomes especially beautiful during the summer months, when sunlight streams through the entrances and fills the cave with brilliant blue light.
Inside, schools of Ryukyu sweepers and soldierfish create a constantly changing underwater scene, while the contrast between the illuminated cave and the deep blue ocean outside makes this a paradise for underwater photographers.
Whether you enjoy underwater landscapes or simply appreciate unique dive environments, Chishi is an unforgettable experience.
Kuefu North – White Sand, Healthy Coral, and Pristine Nature
Between Okinawa's main island and the Kerama Islands lies Kuefu Island, an uninhabited island formed entirely from white sand.
Its northern dive site offers a breathtaking combination of endless white sand flats and thriving coral reefs.
Because strong currents are common, divers can only visit this site when sea conditions are favorable. This limited access has helped preserve its untouched beauty, making it one of the healthiest coral environments in the area.
With bright summer sunlight reflecting off the white sand, the entire underwater world glows with incredible clarity. Encounters with green sea turtles and whitetip reef sharks are also common, making every dive here feel both peaceful and exciting.
Paraiso – A True Underwater Paradise
The name says it all.
Paraiso, the Spanish word for "Paradise," perfectly describes this beautiful coral reef.
Colorful hard corals blanket the shallow reef, while schools of blue-green chromis and anthias dance above them in the current.
The generally calm conditions make Paraiso suitable for divers of all experience levels, from beginners to seasoned underwater photographers.
With crystal-clear water, vibrant coral gardens, and warm tropical sunshine, this site captures everything people imagine when dreaming of diving in Okinawa.
Discover Why Summer Is the Best Time to Dive the Kerama Islands
One of the greatest things about diving in the Kerama Islands is the incredible variety of underwater environments.
On a single trip, you might drift alongside schools of pelagic fish, explore dramatic underwater caves, relax over vibrant coral reefs, and float effortlessly above endless white sand.
Because dive sites are selected each day according to sea conditions, every trip offers a new adventure.
If you're planning a dive vacation in Okinawa, summer is the perfect season to experience the Kerama Islands at their very best. Join us and discover why divers from around the world fall in love with the unforgettable beauty of Kerama Blue.
