

Best for beginner divers, 3-5m, shore entry, mild current.
Onnason Beach provides a shallow shore entry suitable for beginner divers, featuring reef and cave topography. Depths range from 3 to 5 metres, with visibility varying between 10 and 30 metres. The site experiences mild currents and water temperatures between 22 and 29 degrees Celsius. Divers should exercise caution during entry due to potential surf, sharp coral, and rocks; wearing neoprene boots is recommended. Once in the water, maintain a vigilant watch for boat traffic in the vicinity. On-site facilities include parking, toilets, showers, changing rooms, and a dive shop to support your visit.
26.46685, 127.81008
Enter carefully, as there is a shore break and sharp coral and rocks at the entry point, so neoprene boots and a slow, controlled entry will protect both you and the reef. Watch for boat traffic once you are in the water and stay within the marked dive area where possible.
Onna Village is a 50-minute drive from Naha Airport.
Recorded nearby, within 20km
Depth
3-5m
Visibility
10-30m
Skill Level
Beginner
Entry
Shore
Water Temp
22-29°C
Current
Mild
Typical Dive
50 min
Yes, the site is suitable for beginners due to its shallow depth of 3 to 5 metres and mild currents.
The site has an average depth of 4 metres, ranging between 3 and 5 metres.
This is a shore entry site. Use caution when entering due to surf, sharp coral, and rocks.
While the site is used for diving, the shallow reef and cave terrain are accessible for snorkelling, provided you remain aware of boat traffic.
Hazards include boat traffic, surf, and sharp coral or rocks at the entry point.
Diving at Onnason beach in Ishikawa requires the following certifications: Open Water. Always dive within your training limits.
A 3mm wetsuit is recommended for diving at Onnason beach in Ishikawa. Water temperatures range from 22°C to 29°C.
Onnason beach in Ishikawa typically has mild currents that most divers can handle comfortably.
Visibility at Onnason beach in Ishikawa typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.