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Knife Rock
Trincomalee, Eastern Sri Lanka, Sri Lanka

Max depth12 m
LevelEstimated: Beginner-friendly
Water bodyBay of Bengal
Water temp27–30°C
Estimated from climate dataJan–Sep
About this site
Knife Rock is a reef dive site near Trincomalee, Sri Lanka, in the Bay of Bengal. It has a maximum depth of about 12 m. Marine life recorded within about 5 km (OBIS/GBIF) includes nudibranchs, sea turtles, reef sharks, moray eels, stingrays. Typical surface water temperature ranges from about 27 to 30 °C over the year.
Conditions by month
BestGoodMixedOctoberGood
Generally good diving.
Marine life
Recorded nearby
Hawksbill TurtleEretmochelys imbricata- Indian TriggerfishMelichthys indicus
Striped SurgeonfishAcanthurus lineatus
Crown-of-thorns StarfishAcanthaster planci
Moorish IdolZanclus cornutus
LollyfishHolothuria atra
Redfin ButterflyfishChaetodon trifasciatus
Barred ThicklipHemigymnus fasciatus
Nearby sites
- 1Mortar Rock0.4 km
- 2Pigeon Rocks1.1 km
- 3Pigeon Island back side1.2 km
- 4Welluore Rock3.3 km
- 5Sithanane Pare3.3 km
- 6Sithananne Reef3.5 km
Straight-line distances.
Sources: Species occurrences: OBIS (CC BY 4.0), GBIF.org