Underwater “Pyramids” & Hammerheads – Japan’s Yonaguni 🏛️

Did you know there’s an island where a mysterious pyramid city lies underwater and winter seas fill with schooling hammerheads? Fly to Okinawa’s western edge and step onto Yonauni, Japan’s last island before Taiwan. Drop beneath turquoise chop to the Yonauni monument. Massive stone terraces, arrow straight corridors, and step so perfect divers still argue nature or ancient hands. From December to March, cruise the headlands and you might find through a ghostly wall of hammerheads. On land, tiny yonauni horses graze windbent grass. And at the Western Cape, you can watch the sun sink over two countries at once. Join Iggy the island gecko on hidden island secrets for more epic destinations. Follow so you don’t miss the next island adventure.

🏛️🦈 Underwater “ruins” + hammerhead season! Remote Yonaguni (Okinawa) hides the debated Yonaguni Monument—gigantic stone blocks, terraces, and corridors that look carved… or are they? Winter currents bring schools of hammerheads, while shorelines host tiny native horses and a marker at Japan’s westernmost point. Wind, waves, mystery—pure island intrigue.

🦎 Join Iggy the Island Gecko on Hidden Island Secrets for more epic destinations—follow so you don’t miss the next island adventure!

AloJapan.com