Lighthouse – Havelock Island Dive Site
Site Overview
Lighthouse is one of Havelock Island most exciting intermediate dive sites featuring large coral bommies that rise dramatically from the sandy substrate creating isolated reef formations that attract impressive pelagic and reef species in the clear Andaman Sea waters. The bommies range from 5 to 25 meters in depth with the largest formations reaching heights of 10 meters above the surrounding sand creating underwater pinnacles that serve as cleaning stations and aggregation points for diverse marine life. Giant trevally patrol the bommie perimeters in impressive numbers while eagle rays glide between the formations during the seasonal migration from January to April. Whitetip reef sharks rest on sandy ledges at the base of the larger bommies and giant groupers emerge from shadowy overhangs to investigate passing divers. The coral-encrusted bommie tops between 5 and 12 meters support extraordinary biodiversity with table corals, gorgonian fans, and dense soft coral communities providing habitat for thousands of reef fish. Octopus hunt across the bommie surfaces while moray eels occupy every available crevice. The combination of accessible depth, exciting pelagic encounters, and outstanding coral health makes Lighthouse a favorite among experienced divers visiting Havelock Island seeking encounters with larger marine species in one of the Andaman archipelago most rewarding bommie diving environments.
Dive Briefing
"A typical dive at Lighthouse begins with entry from the dive boat at the shallowest bommie top at approximately 5 meters allowing divers to orient themselves and survey the surrounding bommie field before beginning the descent through the coral formations. Once established divers should swim from bommie to bommie exploring the diverse habitats on each formation while maintaining excellent buoyancy control to protect the coral communities and avoid disturbing the resting reef sharks on sandy ledges below. The most productive depth zone is between 12 and 22 meters where giant trevally, eagle rays, and reef sharks are most commonly encountered patrolling the bommie perimeters and sandy channels between formations. Navigate between the bommies watching for pelagic species approaching from the open water and check the overhangs and ledges where whitetip reef sharks and giant groupers shelter during the day. Monitor depth and NDL carefully particularly when exploring the deeper bommie bases near 25 meters and always maintain conservative ascent rates given the distance to the Port Blair hyperbaric chamber. The current typically flows between the bommies so plan your route to drift with the current visiting multiple formations during the dive. Conclude the dive on the shallowest bommie tops enjoying the abundant coral gardens before completing a safety stop at 5 meters deploying your DSMB before surfacing."
Signature Marine Life
Giant Trevally
Caranx ignobilis
Best: November, December, January
Eagle Ray
Aetobatus narinari
Best: January, February, March
Whitetip Reef Shark
Triaenodon obesus
Best: November, December, January
Octopus
Octopus sp.
Best: November, December, January
Giant Grouper
Epinephelus lanceolatus
Best: November, December, January
Safety & Hazards
- Moderate currents around the bommies requiring drift diving awareness
- Deeper sections requiring careful NDL monitoring
- Boat traffic requiring SMB deployment for safe ascent
- Marine life including stonefish and scorpionfish on bommie ledges
- Variable current conditions that can intensify between bommies
Traveler Notes
Who is this for?
Lighthouse is suitable for Advanced Open Water certified divers comfortable with moderate depths to 25 meters and current exposure around the bommie formations. The site rewards experienced divers with exciting pelagic encounters including giant trevally, eagle rays, and reef sharks in a world-class bommie diving environment. Underwater photographers will find outstanding opportunities with dramatic bommie topography, diverse marine species, and excellent visibility during the peak season from November to May. The varied depth profile allows both wide-angle pelagic photography and macro exploration of the bommie invertebrate communities.
For Non-Divers
Non-divers can enjoy Radhanagar Beach ranked among the best in Asia, snorkeling at Elephant Beach, island kayaking through mangrove creeks, cycling through tropical forests, and sunset views from Kalapathar Beach on the eastern coast.
Quick Stats
Dive Logistics
- Barefoot Scuba
- Dive India Havelock
- Andaman Bubbles
- Havelock Dive Centre
Photography Info
Best for: wide_angle, macro
Nearby Stay
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