Scuba diving
Browse introductory scuba and guided dives for certified divers around Trincomalee and Nilaveli. Listings include Pigeon Island and the Navy Underwater Museum. Check certification requirements for each option.
Things to do · Destination Guide
Coral and rock dives, Pigeon Island snorkeling and a historic Indian Ocean harbour.
Pick an activity mode to compare signature sites, skill fit, and gear planning notes before you lock your trip.
Base at Nilaveli or Uppuveli and use short local boat trips for varied reefs, boulders and the Trincomalee underwater museum. Divinguru reports shallow coral-rich Nilaveli dive sites and more varied topography closer to Trincomalee. Named sites are options to discuss, not booked or automatically accessible. In particular, Pigeon Island National Park is primarily a protected snorkel zone; Pearl Divers states that scuba occurs outside the park.
Mortar Rock
A shallow PADI-listed boat reef just outside Pigeon Island National Park, with coral stacks and small-creature opportunities; described as suitable for beginners when conditions are appropriate.
Welluore Rock
PADI-listed shallow Nilaveli rock habitat with hard and soft coral, reef fish and possible macro subjects, stingrays or turtles.
Swami Rock
Operator-listed Trincomalee dive near the Koneswaram headland, with natural rock features and reported underwater temple remains; dive only if that route is authorized and suitable.
Navy Island
Operator-named dive area near Trincomalee.
Trincomalee Underwater Museum, Sandy Bay
Official Navy site featuring the intentionally submerged former gunboats Ex-SLNS Jagatha and Ex-SLNS Weeraya.
White Rock
Named in Pearl Divers and RathnaDeepa Trincomalee/Nilaveli site lists; a backup coral/rock alternative subject to daily routing.
Operator Checklist
Bring certification, recent log, medical screening and dive-computer details. Ask if boats launch from Nilaveli or Uppuveli and whether hotel pickup is included; the Trincomalee Divinguru branch is temporarily closed and guests are currently referred to Nilaveli. SLTDA guidance calls for site access checks, emergency oxygen, insured boats, a trained crew and a dive plan. For an introductory dive it gives a maximum of 12 m. Some operators advertise deeper-than-30 m sites; do not treat those as approved. Leave weather buffer days. Follow DAN no-fly guidance and verify recompression transfer arrangements.
Conditions Fallback
Avoid
Browse introductory scuba and guided dives for certified divers around Trincomalee and Nilaveli. Listings include Pigeon Island and the Navy Underwater Museum. Check certification requirements for each option.