Conditions & tides
Scored by DiveConnect's site-physics model
Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.
Dived here today? How were conditions vs. what we showed?
About this site
Niou Tou Hill off Green Island offers dramatic underwater cliffs and vibrant coral gardens. Strong currents attract large schools of trevally and barracuda, while eagle rays often glide past. The site features steep drop-offs covered in soft corals and sea fans. Visibility typically exceeds 30 meters, with occasional thermoclines. Advanced divers enjoy exploring the canyon-like formations and overhangs teeming with marine life. Night dives reveal crustaceans and hunting predators. The site's exposure to open ocean brings pelagic visitors.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Purple Hermit CrabCoenobita brevimanusReported here · unconfirmed
Oriental ButterflyfishChaetodon auripesReported here · unconfirmed
Three-spot DascyllusDascyllus trimaculatusReported here · unconfirmed
Bignose UnicornfishNaso vlamingiiReported here · unconfirmed
Pentagonal honeycomb coralFavites pentagonaReported here · unconfirmed
Green Sea TurtleChelonia mydasObserved near here · iNaturalist
Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.
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