Maou no Kyuden
Also known as: Demon King's Palace, Satan's Palace
Best time to dive
May to September; June to July; October
What you might see
- Grey reef sharkReliably seen
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 - overhead-environment cave dive, not offered for snorkeling
Safety notes
overhead cave environment (entrance/exit navigation, dark tunnel sections), silt-out and buoyancy risk in confined spaces, site accessible only under specific favorable wind conditions, requires solid air management
Permits & fees
Permits and operators change - confirm before booking.
Location
Nearest hub: Miyakojima
This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.