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Shore entry

Blue Cave

Japan
Shore entryRash guard or 2mm shorty typical

Blue Cave at a glance

Blue Cave is a shore 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 30°C (86°F). Check the latest conditions and entry details before you go.

Marine model · graded 3h ago
0.5 mwaves — under a meter expected

Tap a factor for its source and model point · Forecast 30°C · seasonal avg 29°C

Dive windows this week

Best: Sat
Sun15:00–20:00
Mon6:00–20:00
Tue6:00–20:00
Wed6:00–20:00
Thu6:00–20:00
Fri6:00–20:00
Sat6:00–20:00

Favorable windowModerate window— no window

First light 5:25 · Sunrise 5:51 · Sunset 19:19

Source: Open-Meteo marine · model point 7.7 km from site · graded 3h ago

Forecast only — always assess conditions on site.

Recent diver reports

Dated firsthand observations from divers — not current conditions.

No diver reports for this site yet. — one dated observation helps every diver after you.

Best months, historically

What conditions have historically been typical at this site, month by month — not a forecast.

  1. Jan96%21°C0.9 m
  2. Feb100%21°C0.9 m
  3. Mar99%21°C0.8 m
  4. Apr97%23°C0.8 m
  5. May96%24°C0.8 m
  6. Jun98%27°C0.7 m
  7. Jul94%29°C0.8 m
  8. Aug90%30°C0.8 m
  9. Sep94%30°C0.8 m
  10. Oct99%29°C0.9 m
  11. Nov100%26°C1.0 m
  12. Dec95%23°C1.0 m

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.

Marine life seen at this site

Species noted at this site — not a promise of what you’ll encounter.

Species seen here

  • Achaeus japonicusOccasionally seen
  • Gymnothorax javanicusOccasionally seen

Fills & rentals nearby

Facts from OpenStreetMap, corrected by the community — listed by distance only. Details change; confirm with the shop.

Shop facts come from OpenStreetMap and community corrections, shown nearest first. PickADive lists facts and contacts only — no listing is sponsored or ranked.

Site details

A dive site in Japan. It is accessible from shore. Rated beginner based on available data.

No hazards recorded for this site yet — that never means there are none. Ask a local operator before you dive.


Reviews

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