Blue Cave is a dive site in Japan. Typically most favorable Feb · from 3 years of archive data. Divers commonly see Achaeus japonicus and Gymnothorax javanicus. Recent reports put the water around 29°C (85°F). Check the latest conditions and entry details before you go.
Tap a factor for its source and model point · Forecast 29°C · seasonal avg 30°C
Dive windows this week
Best: TueFavorable windowModerate window— no window
First light 5:50 · Sunrise 6:13 · Sunset 18:37
Source: Open-Meteo marine · model point 7.7 km from site · graded 2h ago
Forecast only — always assess conditions on site.
Dated firsthand observations from divers — not current conditions.
No diver reports for this site yet. — one dated observation helps every diver after you.
What conditions have historically been typical at this site, month by month — not a forecast.
February and November havetypically had the largest share of favorable days here. Conditions vary year to year — this is historical context, not a forecast.
Based on 3 years of archive data. Bar height shows the share of days each month whose conditions have historically scored favorably.
Species noted at this site — not a promise of what you’ll encounter.
Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.
Mo-Su 08:00-20:00 hours from OpenStreetMap — call ahead
Mo-Su 08:00-22:00 hours from OpenStreetMap — call ahead
Mo-Su 07:00-22:00 hours from OpenStreetMap — call ahead
Mo-Su 08:00-19:00 hours from OpenStreetMap — call ahead
Mo-Su 07:30-20:00 hours from OpenStreetMap — call ahead
Mo-Su 09:00-17:00 hours from OpenStreetMap — call ahead
Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.
Data updated July 2026
A dive site in Japan.
No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.
Divers at Blue Cave in Japan commonly report sightings of Achaeus japonicus and Gymnothorax javanicus. Achaeus japonicus and Gymnothorax javanicus are reported only occasionally. Marine life varies by season and conditions—check the site page for recent diver observations and photos.
No reviews yet — this site is waiting for its first. Dived here? Your rating and a few lines help the next diver.
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