Scuba Season
Underwater at Shark Ledge

Shark Ledge

Osezaki · Japan

A series of broad sand and rubble ledges between 20 and 30 metres where whitetip reef sharks gather to rest during daylight hours, often lying motionless in groups of three to six individuals beneath overhangs. The sharks are habituated to divers and allow close approach, making this one of the most reliable shark encounters in Japan. The surrounding reef is characterised by large boulder formations with crevices hosting lionfish, scorpionfish, and juvenile moray eels. At dusk the sharks become active and hunt the reef alongside banded sea kraits.

Conditions

Depth

18 to 32 m

Advanced depths

Current

Can be moderate

Can pick up on the edge

Visibility

8 to 16 m

Clearest in the calm season

Water

13 to 27°C

5mm wetsuit

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Gear

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 7mm wetsuit or drysuit · cold water
    • Dive computer