Diving in Okinawa Main Island
Why dive here
Okinawa Main Island offers some of Japan's richest diving, with 262+ marine species recorded in the area - including bull sharks, humpback whales, seahorses, sea turtles and clownfish.
Okinawa Main Island might be Japan’s biggest tourist draw for diving, but it still delivers. We love how accessible everything is, from the shore entries at Manza Dream Hole to the short boat rides to pinnacles like Gorilla Chop. The water stays reliably warm, rarely dipping below 22°C, and on a good day, visibility stretches past 25 metres. You’ll find a solid mix here: healthy hard coral gardens, especially around the northern sites, and some genuinely interesting wrecks further south. The USS Emmons, for example, is a deep, humbling dive, usually with some current, but it’s an incredible piece of history. For something shallower, the Cape Manza area is fantastic; we’ve spent entire dives there just watching the resident blackfish and various hawkfish dart around the corals. Seasonal highlights include the schooling hammerheads further afield in winter, though for the Main Island itself, summer and autumn bring the calmest conditions and best chances for spotting turtles in the shallows. Just keep an eye on typhoon season warnings from July to October.
Okinawa Main Island Dive Site Map
Dive sites and dive centres in Okinawa Main Island
Okinawa Main Island Dive Sites
55 dive sites in Okinawa Main Island
Aosango
Aosango, on Okinawa Main Island, offers an easygoing dive for intermediate divers. The site bottoms out at 14m, making it a good spot for longer no-decompression limits. Expect to see modest coral formations and a decent variety of smaller reef fish as you explore. It’s a solid choice if you're looking for a relaxed, straightforward dive.
Cappadocia
Cappadocia on Okinawa Main Island is a unique dive. We drop into a large, cavernous chamber with multiple swim-throughs and pockets of light filtering down from above. The rock formations are impressive, giving the site its name, and you'll often find schooling fish hanging out in the darker areas. It's a good pick for intermediate divers looking for something a bit different from a standard reef dive.
Coral 1
Coral 1, off Okinawa Main Island, is a solid introductory dive. The maximum depth of 18 meters makes it a comfortable spot for newer divers or those looking for a relaxed afternoon. You’ll find healthy hard corals here, along with the usual reef suspects like clownfish in anemones and plenty of small wrasse darting about. It’s a good option if you want a straightforward, easy dive.
Cross Line
Cross Line is one of our favourite wreck dives on Okinawa. It's an easily accessible site, a good choice for newer divers, but still offers plenty to explore. This isn't some vast, imposing battleship, but a cargo ship, the *USS Emmons*, sunk during World War II. We love the way she sits upright on the sandy bottom, pretty much intact, with the deck structures still recognisable. The wheelhouse is particularly cool, you can peek inside and see the gauges. Schools of batfish often hang out around the mast, just swaying in the gentle surge, and you’ll spot lionfish tucked into crevices in the hull. Look closely and you’ll find plenty of colourful nudibranchs crawling over the encrusted metal. We’d suggest going in the morning; the light filters down beautifully through the deck hatches, creating these ethereal shafts of light that dance on the inside. It’s an interesting experience, swimming through history that’s now teeming with new life.
Dream Hole
Dream Hole is one of those Okinawa sites that really delivers on the drama, even if it’s a bit of a local secret. You’ll descend into a narrow crack, then follow the light down to about 27 meters, where the actual "hole" opens up into a larger chamber. The real magic happens when you look back towards the surface; the sunbeams piercing through the entrance create this incredible, almost ethereal glow. It's a relatively short dive, mostly about that one spectacular light show, so it’s perfect for intermediate divers who appreciate a good photographic opportunity and don't mind a bit of a tight squeeze on the entry.
Ginowan Marine Center
Ginowan Marine Center is a convenient shore dive, especially if you’re staying close to Naha and want an easy entry. The maximum depth is a shallow 10m, making it perfect for check dives or getting comfortable again after a break. You'll often spot some juvenile reef fish darting between the rocks and a scattering of hard corals on the sandy bottom. We like it as a casual afternoon dip, maybe when you don't feel like a boat trip. It’s certainly not Okinawa’s most spectacular dive, but it's reliable and accessible for beginners.
Gorilla Chop
Gorilla Chop is a popular shore dive, perfect for newer divers or those looking for an easy entry. The maximum depth of 10m means plenty of bottom time exploring the sandy patches and small coral bommies. We often spot juvenile reef fish, nudibranchs, and sometimes sea snakes here. It’s a relaxed spot for a couple of easy dives.
Hamahiga Beach
Hamahiga Beach is a very shallow, protected spot, perfect for getting comfortable with your gear or trying out freediving. The sandy bottom stretches out at about four metres, making it an easy entry point for beginners. You won't find dramatic coral walls here, but it's a calm place to practice skills and perhaps spot some small, curious fish in the seagrass. Ideal for first-timers or a relaxed dip.
Inan South
Inan South is a solid, easy dive, perfect for newer divers or those looking for a relaxed afternoon. The maximum depth is 16m, so you’ve got plenty of bottom time to explore the various small swim-throughs and crevices. We often spot lionfish tucked into the ledges and plenty of anemonefish in the shallows. It's a comfortable spot to get back in the water.
Ishikiri
Ishikiri offers a relaxed dive to 18 meters, a good choice for newer divers or those looking for an easy day out. The site is mostly sandy, punctuated by small coral patches and some interesting rock formations. You’ll often find nudibranchs here, along with juvenile reef fish sheltering amongst the corals. It’s a comfortable, straightforward dive.
Kin Red Beach
Kin Red Beach is a solid choice for entry-level divers or those looking to refresh their skills. It's a shallow sandy bottom dive, maxing out at about 8 meters, making it ideal for buoyancy practice. While you won't find dramatic coral formations here, we've often spotted cuttlefish, garden eels, and various juvenile fish tucked into the sand. It’s a calm, easy dive for shaking off the rust.
Kohri Zampa
Kohri Zampa is a decent spot for newer divers looking for an easy day out. Dropping to 24m, it’s mostly sandy patches dotted with coral bommies. You’ll find the usual suspects here: anemonefish, some wrasse, and occasionally a passing turtle. We think it's a good place to get comfortable with the local conditions before heading to deeper, more current-prone sites.
Okinawa Main Island Dive Centres
32 dive shops and operators in Okinawa Main Island
Ocean Wildlife in Okinawa Main Island
262 species recorded in Okinawa Main Island
Okinawa Main Island Daylight & Sunrise/Sunset
Sunrise and sunset times for Okinawa Main Island, calculated from coordinates
Today - Monday 24 August
Sunrise
06:05
Sunset
18:59
Daylight
12h 53m
Golden Hour
18:28
First light (dawn) at 05:42 · Last light (dusk) at 19:23
Monthly Averages
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| Jan | 07:19 | 17:58 | 10h 39m |
| Feb | 07:06 | 18:21 | 11h 15m |
| Mar | 06:39 | 18:38 | 11h 58m |
| Apr | 06:06 | 18:52 | 12h 46m |
| May | 05:43 | 19:09 | 13h 26m |
| JunLongest | 05:36 | 19:23 | 13h 47m |
| Jul | 05:45 | 19:25 | 13h 39m |
| AugNow | 06:01 | 19:07 | 13h 6m |
| Sep | 06:15 | 18:35 | 12h 20m |
| Oct | 06:28 | 18:02 | 11h 34m |
| Nov | 06:48 | 17:40 | 10h 52m |
| DecShortest | 07:10 | 17:39 | 10h 29m |
Times are approximate local times based on longitude. Actual times may vary slightly depending on the exact timezone observed in Okinawa Main Island.
Where to Stay near Okinawa Main Island
Prices from Booking.com. We may earn a commission at no extra cost to you.
Marine Protected Areas near Okinawa Main Island
10 protected areas near Okinawa Main Island - please respect local regulations when diving
慶良間諸島
沖縄海岸
Keramashoto Coral Reef
久米島
やんばる
屋我地
沖縄戦跡
渡名喜
大保
チービシ
Getting to Okinawa Main Island
Okinawa
Naha
Ie
Book a dive trip in Okinawa Main Island
Guided dives, courses & snorkel tours - instant booking