All resultsExplore/Guam/Blue Hole
Blue Hole
Apra Harbor, Guam
EntryBoat
Max depth40 m
LevelAdvanced and up
Water bodyPhilippine Sea
Water temp28–30°C
Estimated from climate dataDec–Jun
About this site
Blue Hole is a blue hole and cave dive site near Apra Harbor, Guam, Guam, in the Philippine Sea. It is reached from a boat with a maximum depth of about 40 m. Recommended for advanced divers. Marine life recorded within about 5 km (OBIS/GBIF) includes nudibranchs, groupers, dolphins, reef sharks, octopus. Typical surface water temperature ranges from about 28 to 30 °C over the year.
Conditions by month
BestGoodMixedOctoberGood
Generally good diving.
Marine life
Recorded nearby
- Tracey's DemoiselleChrysiptera traceyi
- Princess DamselPomacentrus vaiuli
- Bullethead ParrotfishChlorurus spilurus
- Brown SurgeonfishAcanthurus nigrofuscus
- Lined BristletoothCtenochaetus striatus
- Orangespine UnicornfishNaso lituratus
- Schlegel's ParrotfishScarus schlegeli
- Jewel DamselStegastes lacrymatus
Nearby sites
- 1Shark Pit0.2 km
- 2Barracuda Rock0.8 km
- 3Finger Reef1.4 km
- 4Gab Gab2.1 km
- 5SeaBee Junkyard2.3 km
- 6San Luis Beach2.5 km
Straight-line distances.
Sources: Dive Vibe Community (ODbL) · Species occurrences: OBIS (CC BY 4.0), GBIF.org