

Best for intermediate divers, 15-30m, boat entry, mild current.
The Underground is a reef site defined by its swim-throughs and overhead sections. Located 500 metres from shore, the site ranges from 15 to 30 metres in depth with an average of 25 metres. Divers encounter mild currents and visibility between 10 and 30 metres. Due to the overhead environment and depth, this site is suited for intermediate divers with strong buoyancy control. Access is by boat only, and divers must remain vigilant regarding boat traffic on the surface. Water temperatures remain between 27 and 30 degrees Celsius throughout the year. Night diving is permitted, during which the reef structure becomes a distinct environment.
16.40510, -86.41203
This is a boat-access site with active vessel traffic on the surface, so deploy your SMB before ascending and make your safety stop away from the reef structure. The site dives well year-round, but night dives here reward patience as octopus and moray eels become noticeably more active after dark.
Accessible via the Dixon Cove Dive Center for Mary's Place; free off-road parking is available at both dive center locations.
Recorded at this site
Depth
15-30m
Visibility
10-30m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
27-30°C
Current
Mild
Typical Dive
60 min
The provided data does not specify individual species observed at this site.
No, this site is intended for intermediate divers due to the depth and overhead environment.
The reef runs from 15 to 30 metres, with an average depth of 25 metres.
This is a boat-access site; a boat is required to reach the location.
The site is primarily a dive location due to the depth and overhead structures.
Hazards include boat traffic, significant depth, an overhead environment, and sharp coral.
Diving at The Underground Roatan in French Harbor requires the following certifications: Open Water. Always dive within your training limits.
Yes, equipment rental is available at or near The Underground Roatan in French Harbor. Contact local dive operators for specific gear availability and prices.
A rashguard or 2mm shorty is recommended for diving at The Underground Roatan in French Harbor. Water temperatures range from 27°C to 30°C.
The Underground Roatan in French Harbor typically has mild currents that most divers can handle comfortably.
Visibility at The Underground Roatan in French Harbor typically ranges from 10 metres to 30 metres. Conditions vary with weather, tides, and seasons.