The Canyon
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.
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About this site
The Canyon is a dive site at Pulau Weh characterised entirely by its dramatic topography: divers descend a deep wall, pass through an underwater canyon lined with hundreds of gorgonian fan corals, and finish by swimming under a natural arch. The site is rated advanced to difficult.
The wall drops to a maximum depth of 40 m, with the terrain defined by pinnacles, giant sea fans, and the canyon passage itself. Visibility is consistently great, making the full scale of the formations easy to appreciate.
Marine life along the wall and canyon includes schooling bannerfish, unicorn fish, gold saddle goatfish, barracudas, trevally, snappers, emperors, octopus, and nudibranchs. Devil eagle rays, manta rays, turtles, and large Napoleon wrasse are possible sightings. Mola mola sunfish have been recorded on an annual basis when the water turns cold. Water temperature is typically 28–29°C.
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The dive ends on a boulder shoreline, where tangs and surgeonfish are present. Current is a regular feature of the site, and combined with the depth and technical topography, The Canyon is suited to experienced divers comfortable with strong flow and deep walls.
Marine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Pentagonal honeycomb coralFavites pentagonaReported here · unconfirmed
Laced MorayGymnothorax favagineusReported here · unconfirmed
Gem Sea SlugGoniobranchus geminusReported here · unconfirmed
Ribbon EelRhinomuraena quaesitaReported here · unconfirmed
Black-margined NudibranchDoriprismatica atromarginataReported here · unconfirmed
Day OctopusOctopus cyaneaReported here · unconfirmed
Bluefin TrevallyCaranx melampygusReported here · unconfirmed
Domino NudibranchPhyllidiella zeylanicaReported here · unconfirmed
Corrugated CoralPavona variansReported here · unconfirmed
Giant MorayGymnothorax javanicusReported here · unconfirmed
Leopard / zebra sharkLeopard / zebra sharkConfirmed present · 2 independent sources
TrevallyTrevallyConfirmed present · 2 independent sources
BannerfishBannerfishConfirmed present · 2 independent sources
UnicornfishUnicornfishConfirmed present · 2 independent sources
BarracudaBarracudaConfirmed present · 2 independent sources
Napoleon (humphead) wrasseNapoleon (humphead) wrasseConfirmed present · 2 independent sources
Eagle rayEagle rayConfirmed present · 2 independent sources
Manta rayManta rayConfirmed present · 2 independent sources
SurgeonfishSurgeonfishConfirmed present · 2 independent sources
Mola mola (ocean sunfish)Mola mola (ocean sunfish)Confirmed present · 2 independent sources
OctopusOctopusConfirmed present · 2 independent sources
NudibranchNudibranchConfirmed present · 2 independent sources
SnapperSnapperConfirmed present · 2 independent sources
Indian LionfishPterois milesObserved near here · iNaturalist
Red-tailed ButterflyfishChaetodon collareObserved 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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