Castle
Great Barrier Reef, Australia
EntryBoat
Max depth24 m
LevelAdvanced and up
Water bodyCoral Sea
Water temp25–29°C
Estimated from climate dataApr
About this site
Castle is a reef dive site, Australia, in the Coral Sea. It is reached from a boat with a maximum depth of about 24 m. Recommended for advanced divers. Marine life recorded within about 5 km (OBIS/GBIF) includes reef sharks, jacks, groupers, whale sharks, moray eels. Typical surface water temperature ranges from about 25 to 29 °C over the year.
Conditions by month
BestGoodMixedOctoberBest
Typically one of the best months here.
Marine life
Recorded nearby
Grey Reef SharkCarcharhinus amblyrhynchos
Silvertip SharkCarcharhinus albimarginatus
Emperor NautilusNautilus pompilius
Whitetip Reef SharkTriaenodon obesus- Giant TrevallyCaranx ignobilis
- Moorish IdolZanclus cornutus
Small Giant ClamTridacna maxima- Chinese FootballerPlectropomus laevis
Nearby sites
- 1Halfway Wall0.4 km
- 2Admiralty Anchorage3.9 km
- 3Round the Bend4.5 km
- 4Osprey Reef North Horn5.5 km
- 5North Horn5.9 km
Straight-line distances.
Sources: Dive Vibe Community (ODbL) · Species occurrences: OBIS (CC BY 4.0), GBIF.org