

Best for intermediate divers, 8-18m, boat entry, mild current.
Kelly's Caverns, located near George Town and South Sound, offers a diverse underwater topography featuring a reef and cavern system. Divers explore three distinct sections, including canyons and tunnels that stretch eastward, alongside a mini wall located at 14 to 15 metres. The site reaches depths between 8 and 18 metres, with visibility ranging from 15 to 30 metres. Access is strictly by boat, and the site is suited for intermediate divers due to the overhead environment hazard. Conditions are generally mild, with water temperatures fluctuating between 27C and 30C throughout the year. Typical dives at this location last approximately 45 minutes.
19.29111, -81.14583
Carry primary and backup lights even in daylight as limestone formations block natural light deeper in the cavern system.
Accessible by boat, 20 minutes from the dock.
Recorded at this site
Depth
8-18m
Visibility
15-30m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
27-30°C
Current
Mild
Typical Dive
45 min
Best Time
May
No, this site is rated for intermediate divers, primarily due to the presence of an overhead environment within the caverns.
The site features depths ranging from 8 to 18 metres, with a mini wall section located at 14 to 15 metres.
Boat access is required to reach this site.
Divers can expect mild currents and visibility between 15 and 30 metres, with water temperatures ranging from 27C to 30C.
Diving at Kelly's Caverns in Half Moon Bay requires the following certifications: Open Water. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Kelly's Caverns in Half Moon Bay. Water temperatures range from 27°C to 30°C.
The best months to visit Kelly's Caverns in Half Moon Bay are May. Conditions outside these months can still be good but are less predictable.