Diving Yonaguni Island, famous mainly for the mythical underwater ruins, you’ll find plenty of awesome drift dives and in season, large schools of hammerhead sharks. The water here is among the clearest you’ll see anywhere in the world.
Yonaguni Island is the westerly-most point in Japan, on a clear day you can see Taiwan, only 100km away.
It’s famous mainly for the mythical underwater ruins found here, but there are plenty more beautiful dive sites to explore here and in season, large schools of hammerhead sharks (Feb/Mar).
Yonaguni is the western-most island in Japan’s southwestern-most prefecture of Okinawa. Being a remote pelagic island means the surrounding water is remarkably clear and surprisingly warm thanks to a warm tropical current making its way north from the Philippines along the east coast of Taiwan.
In fact, across all of Okinawa’s islands, the water rarely gets below 21 degrees Celcius. Yonaguni is at its warmest between July and November – 28 to 29 degrees. High winds in January can create rough conditions, and throughout the year, being a pelagic island, some of the dive sites (including the monument) are subject to strong currents.
ANA has daily connecting flights to Naha, Okinawa from Tokyo, but as Naha is an international airport, you can also fly here directly from Singapore, Taipei, Seoul, Shanghai and Hong Kong.
Ryuku Air Commuter (a subsidiary of JAL) operates daily 90-minute flights to Yonaguni from Naha, Okinawa’s international airport.
There is one dive operator here, Sou-Wes Diving, run by ‘Shorty’ Aratake, and his father Kihachirou Aratake, who discovered the Yonaguni Monument back in 1981.
Where to Stay
While there are a number of hotels and traditional Bed and Breakfast-style Ryokan, Sou-Wes offer the most convenient of accommodation options, at their Irifune Hotel and the slightly more luxurious Irifune Annex Bamboo Villa.
The Irifune Hotel is more central, a two-minute walk to the dive shop and provides all meals, both western and Japanese-style rooms and free wifi.
There are close to 70 dive sites around the island, and with both a summer and winter harbour, Shorty and Kihachirou can usually find a sheltered dive site even in rough conditions. The main feature of all of these sites is the incredible water clarity, at least 50m, so clear you can look up from a depth of 30 metres and see the dive boat.
Some sites are undulating fields of coral, interspersed with the occasional sharp drop off or rivers of white sand. Others are a series of large boulders, caverns and swim-throughs with, pebbled floors and walls covered in large colourful fans.
Expect to see lots of butterfly fish, yellow striped snapper, turtles, moray eels, anthias and anemone fish.