Nazumado
Best time to dive
September to October; May to July
What you might see
- Dogtooth tunaLikely
- Hammerhead sharkLikely
- Moray eelLikely
- NudibranchLikely
- Pygmy seahorseLikely
- Sea turtleLikely
- SeahorseLikely
- Thresher sharkLikely
Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.
Certification & difficulty
Technical - advanced conditions (currents/depth); dive within your training.
Snorkelling
Not a snorkel site - Limited - currents and swell make it primarily a scuba site; nearby calmer bays (e.g. Sokodo) better suited to snorkeling
Safety notes
Strong, unpredictable currents; powerful ocean swell; slippery rope-assisted ramp entry; rapidly changing conditions; remote island location
Permits & fees
- (no specific government permit/park fee documented; standard local dive-shop guiding/gear-rental fees apply)
Permits and operators change - confirm before booking.
Location
Nearest hub: Hachijojima
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.

