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 Cooper River flows through the South Carolina Lowcountry, joining the Ashley and Wando Rivers near Charleston before reaching the Atlantic. It is known among divers primarily as a blackwater river dive, with strong tidal current and near-zero visibility, where fossil hunters search the riverbed for shark teeth and other prehistoric remains. Diving here typically means working by feel along the bottom rather than by sight.
AI overviewMarine life here
Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.
Common Bottlenose DolphinTursiops truncatusReported here · unconfirmed
Tamanend's Bottlenose DolphinTursiops erebennusReported here · unconfirmed
Atlantic Sand Fiddler CrabLeptuca pugilatorReported here · unconfirmed
Cannonball JellyStomolophus meleagrisReported here · unconfirmed
Squareback Marsh CrabArmases cinereumReported here · unconfirmed
Atlantic Blue CrabCallinectes sapidusReported here · unconfirmed
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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