Official Cocos dive page for Ski Run with the 15-40 m profile and reef-edge layout.
Boat reef slope with sharks and garden eels.
Only one dive operator runs the islands, so prebooking is essential.
Ski Run is a classic Cocos atoll reef dive: start on the coral edge, slide down a sand slope to the glassfish bommie, and work the line for feeding trevally, sleeping whitetip reef sharks, and long garden eels. It is a compact, boat-led site that rewards calm water, tidy buoyancy, and an unhurried pace over the reef edge.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
15m - 40m
Depth Note
Reported at 15-40 m, with the main line starting on the coral edge before it drops along sand to the glassfish bommie.
Best Season
Year-round, with the calmest windows outside the main trade-wind stretch.
Typical Conditions
Warm tropical water, clear coral reef conditions, and a reef-edge start over sand. Trade winds can make the lagoon breezier from July to October.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Watch coral contact along the edge, keep depth and gas planning conservative on the 40 m slope, and let the boat briefing set the pickup plan.
Access Restrictions
Prebooking is essential because there is only one operator on the islands and boat spaces can fill quickly.
Legal Notes
Follow local reef-contact and marine-area rules, and respect the operator's briefing on pickup and entry timing.
Community notes to help plan your visit.
Scuba Diving
This is a classic reef-edge to sand-slope scuba profile, with enough depth to reward slow trim, simple gas planning, and an unhurried look at the bommie.
Freediving
Not a freedive-first site; the main line drops quickly into scuba depths and is best approached by boat.
Snorkeling
A snorkel look at the shallow reef edge may be possible in very calm water, but Ski Run is mainly a scuba site.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Official Cocos dive page for Ski Run with the 15-40 m profile and reef-edge layout.
Visibility averages 20-30 m, one operator, max 10 divers, and abundant reef life across the Cocos atoll.
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