Local St. Thomas dive-operator page with Calf Rock details.
Calf Rock boat reef with ledges, coral, and diverse marine life.
Calf Rock boat reef with ledges, coral, and diverse marine life.
The site is offshore and is normally run as a guided boat dive from St. Thomas.
Calf Rock is part of the Calf and Cow reef system on the south side of St. Thomas. The site is known for overhangs, ledges, canyons, and a very lively reef with shallower canyon sections that make it feel roomy rather than technical. A mix of lobsters, eagle rays, horse-eye jacks, nudibranchs, sharks, green morays, and turtles keeps the dive busy from start to finish.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
Up to 14m
Depth Note
The broader Cow and Calf guide lists 10 m average depth and 14 m max depth.
Best Season
Year-round; calm conditions make the shallow ledges and crevices easiest to enjoy.
Typical Conditions
Clear water, a shallow profile, and an easy-to-read reef structure with ledges and crevices.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
Watch your buoyancy under the ledges and keep an eye on spacing in the swim-through style terrain.
Community notes to help plan your visit.
Scuba Diving
The appeal is the ledges, crevices, and soft-coral structure rather than a long swim or deep profile.
Snorkeling
The shallow profile and clear water can work for snorkelers on calm days, though scuba is the better fit for the structure.
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
Local St. Thomas dive-operator page with Calf Rock details.
Official St. Thomas diving guide covering the Cow and Calf reef system.
Know this site? Improve Spot Details.

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