Japan · between Kohama and Iriomote

Yonara Channel

Best time to dive

January to December; May to November

What you might see

  • Manta rayLikely

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 mid-channel drift dive with strong current and depths to 30m

Safety notes

Strong, unpredictable currents; drift-dive-only (must stay with guide/boat pickup); depth to 30m; short bottom time; boat traffic in channel

Permits & fees

Permits and operators change - confirm before booking.

Location

Nearest hub: Ishigaki

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