South-coast site list with a shallow Ned's Tunnels profile and beginner-friendly note.
Shallow south-side Grand Cayman reef with coral fingers and tunnels.
Shallow south-side Grand Cayman reef with coral fingers and tunnels.
Ned's Tunnels is a shallow boat-access reef on the south side of Grand Cayman with a clear reef profile, coral fingers, and a mix of swim-throughs and arches that make the site read bigger than its depth. It is a relaxed Cayman dive where calm water, easy access, and south-side reef life matter more than raw depth, so planning stays straightforward.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
0m - 12m
Depth Note
Guide pages place the site around 30-40ft, and the official moorings map lists 40ft, so the conservative baseline is a shallow reef with a modest maximum depth.
Best Season
Winter months and northwesterly-wind periods are the calmest windows on the south side.
Typical Conditions
Shallow south-side reef with elkhorn coral, swim-throughs, and calm leeward conditions.
Site conditions, restrictions, and access requirements.
Site Conditions
Safety Notes
Keep buoyancy tight through the swim-throughs and coral heads, and use the mooring system instead of anchoring.
Access Restrictions
Boat mooring site on the south side; use operator briefings and public mooring rules.
Legal Notes
Tie to the public mooring and avoid anchoring on the reef.
Community notes to help plan your visit.
Scuba Diving
The shallow profile and swim-throughs make it a classic relaxed Cayman reef dive that still feels lively.
Freediving
Freediving can work on the shallow reef top, but the tunnels and mooring layout still make scuba the better fit.
Snorkeling
The shallow reef top may suit calm snorkel passes, though the site is mainly planned as a boat dive with swim-throughs.
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
South-coast site list with a shallow Ned's Tunnels profile and beginner-friendly note.
Official public moorings map and anchor guidance for Grand Cayman.
Grand Cayman site list plus visibility, current, and marine-life context.
South-side conditions, calm seasonality, and shallow swim-through site context.
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