

Best for advanced divers, 75-110m, boat entry, moderate current.
The St Cathan is a deep wreck located within the Grand Strand Reefs, resting at depths between 75 and 110 metres. This site is strictly for advanced technical divers, requiring boat access and careful planning for decompression profiles. Visibility is highly variable, ranging from 25 to 100 metres. Divers must manage moderate currents and the hazards associated with an overhead environment, including entanglement risks. Water temperatures fluctuate significantly throughout the year, dropping as low as 13C at depth. Local boat charters and air fills are available to support these technical dives. Given the extreme depth and potential for strong currents, thorough preparation and appropriate thermal protection are essential.
33.21768, -78.55225
At these depths you are in decompression diving territory, so confirm your charter operator is comfortable with technical profiles and carries appropriate gas supplies before you book. Water temperature can drop to 13C at depth, so plan your thermal protection accordingly.
Full day boat charter required.
Recorded at this site
Depth
75-110m
Visibility
25-100m
Skill Level
Advanced
Entry
Boat
Boat required
Water Temp
13-24°C
Current
Moderate
Typical Dive
50 min
No, this site is intended for advanced technical divers due to the extreme depth of 75 to 110 metres and the associated decompression requirements.
Access is by boat only, located approximately 72 kilometres from the shore. You should book with a charter operator experienced in technical diving profiles.
The wreck sits at depths ranging from 75 to 110 metres, with an average depth of 95 metres.
Divers face risks from the extreme depth, moderate currents, and potential entanglement within the overhead environment of the wreck. Sharks are also present at the site.
No, the St Cathan is a deep technical wreck dive and is not suitable for snorkelling.
Diving at St Cathan in The Carolinas requires the following certifications: Advanced, Wreck. Always dive within your training limits.
A 7mm wetsuit or semi-dry is recommended for diving at St Cathan in The Carolinas. Water temperatures range from 13°C to 24°C.
Expect moderate currents at St Cathan in The Carolinas. Good buoyancy control and some drift diving experience is helpful.
Visibility at St Cathan in The Carolinas typically ranges from 25 metres to 100 metres. Conditions vary with weather, tides, and seasons.