The seabed off southern Japan has long held shapes that look out of place. Divers near Amami Oshima Island began noticing ...

The Japan Maritime Self-Defense Force said it is building up defense capabilities to enhance deterrence and response.

In 1995, divers first noticed a group of bizarre sandy "crop circles" on the seabed around Amami Oshima Island, southwest Japan. But it took decades for scientists to identify the marine artists ...

A new video from Japan’s maritime authorities captures an underwater volcano bursting through the sea surface in a violent ...

Have you ever wandered along a beach and marveled at the gorgeous sand sculptures made by local artists? All of that effort, only for them to be destroyed when the tide comes in or the wind picks up.

The underwater monument near Yonaguni Island has puzzled divers and researchers since its discovery in 1986. Submerged beneath the waves off Japan’s southwestern coast, the vast stone structure ...