Japan · off Shimoda, south Izu Peninsula

Mikomoto Island

Best time to dive

July to October; July to September; April to December

What you might see

  • DolphinPossible
  • Eagle rayLikely
  • Hammerhead sharkLikely
  • Mola mola (oceanic sunfish)Possible
  • Sea turtleLikely

Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.

Certification & difficulty

Advanced Open Water - advanced conditions (currents/depth); dive within your training.

Snorkelling

Not a snorkel site - no - open-water drift/boat dive site only, not offered for snorkeling

Safety notes

powerful, unpredictable current changes and upwelling/downwelling causing diver separation; requires rock-gripping in surge; short bottom times (dives capped ~35 min incl. safety stop); advanced-diver-only conditions; no anchor/descent lines

Permits & fees

Permits and operators change - confirm before booking.

Location

Nearest hub: Shimoda

This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.