Ooshima Point is a reef and drop-off site located in Japan, accessible only by boat. The topography features a reef wall that descends from 10 metres to a depth of 30 metres, with an average depth of 15 metres. Divers should expect moderate currents that can strengthen, requiring solid buoyancy control to avoid contact with sharp coral and rocks. Visibility ranges from 10 to 30 metres depending on conditions. The site is suitable for intermediate divers and supports night diving. Water temperatures fluctuate between 17 and 26 degrees Celsius throughout the year. Facilities including showers and a dive shop are available for visitors.

Miyoken is a reef and cave dive site in Japan offering depths between 10 and 30 metres. The site is accessible via both shore and boat entries. Divers should expect moderate currents and visibility ranging from 5 to 10 metres. The topography consists of reef and cave formations that support a variety of reef fish and invertebrates. Due to the presence of sharp coral and rocks throughout the area, divers must maintain careful buoyancy and wear protective gear to avoid contact with the structures. Air fills and equipment should be prepared in the nearest town before arrival as on-site facilities are not confirmed.