

Best for intermediate divers, 10-30m, boat entry, moderate current.
Johnson's Reef in the Port Blair Area offers intermediate divers a varied reef topography ranging from 10 to 30 metres, with an average depth of 20 metres. Access is by boat only. The site features moderate currents that can intensify, requiring careful planning to manage the outward and return legs of the dive. Visibility typically ranges between 10 and 20 metres, with water temperatures between 28 and 30C. Divers should maintain distance from sharp coral, rocks, and sea urchins to avoid injury. Species recorded around this area include wrasses, elongate clams, Indian lionfish, harlequin sweetlips, and various groupers. Divers should remain alert for potential down currents and monitor depth to manage nitrogen narcosis risks.
12.07839, 92.95201
Moderate currents can intensify quickly at Johnson's Reef, so plan your dive to work into the current on the outward leg and ride it back to the boat. Give the sharp coral and rocky outcrops a wide berth, particularly when manoeuvring in surge near the shallower sections.
Access info coming soon
Recorded nearby, within 20km
Depth
10-30m
Visibility
10-20m
Skill Level
Intermediate
Entry
Boat
Boat required
Water Temp
28-30°C
Current
Moderate
Typical Dive
60 min
Species recorded around this area include wrasses, elongate clams, Indian lionfish, harlequin sweetlips, and various groupers.
No, this site is intended for intermediate divers due to the presence of moderate currents, potential down currents, and the need for precise buoyancy control near sharp coral.
The reef ranges from 10 to 30 metres in depth, with an average depth of 20 metres.
Johnson's Reef is a boat-access only site.
Hazards include sharp coral, rocks, sea urchins, moderate currents, and potential down currents.
Diving at Johnson's Reef in Andaman Islands requires the following certifications: Open Water. Always dive within your training limits.
A rashguard or 2mm shorty is recommended for diving at Johnson's Reef in Andaman Islands. Water temperatures range from 28°C to 30°C.
Expect moderate currents at Johnson's Reef in Andaman Islands. Good buoyancy control and some drift diving experience is helpful.
Visibility at Johnson's Reef in Andaman Islands typically ranges from 10 metres to 20 metres. Conditions vary with weather, tides, and seasons.