Darvel Bay

The bay covers approximately 100,000 hectares facing the Sulawesi Sea. It contains a matrix of roughly 50 islands. This region sits inside the Coral Triangle. Most visitors travel straight past Lahad Datu on their way south to Semporna or Sipadan. That bypass leaves Darvel Bay exceptionally quiet. The local operators run bespoke schedules based on advance bookings.

A pioneer dive operation is based in Silam village. Its founders established their centre in 2009. Local operators run nineteen-metre and twenty-three-metre vessels out to the reefs. One local explorer has mapped over sixty individual dive sites across the bay. Private speedboats also operate from a base on Jalan Silam. Guided excursions depart from Payang Beach. These operators enforce strict limits on diver numbers to protect the recovering marine ecosystem.

This signature site is formally known as Takat Tenggiri. It sits at Tingkayu Reef roughly 20 minutes by speedboat from Silam village. A local dive operator named Glen Hapirulla mapped the formation in 2017. He originally named it the Blue Ring Reef. A state scientific expedition recorded the site in 2019 and promoted it as a new discovery. The authorities later issued a public apology to credit the original explorer. The government officially named it the Blue Ring Hole in 2022. It is a double sunken coral depression rather than a true geological blue hole. The outer features bottom out between 15 and 24 metres depending on the tide.

The two adjacent circular reef structures measure roughly 50 to 70 metres across. The site divides into three distinct zones known as Hole One, Hole Two and the Outer Ring. Hole One offers limited explorable area. Hole Two is wider. It features a specific section called Journalist Reef. The inner walls are densely packed with healthy hard corals. Divers find massive intricate rose corals and vase corals covering the substrate. The 2019 Sabah Parks expedition verified high coral health inside the bowls.

The site is entirely sheltered from strong ocean currents. That calm environment makes it a highly accessible dive for beginners. The topography offers excellent wide-angle photography opportunities as you descend into the bowl. The pioneering operator enforces a strict daily limit of 8 divers here to prevent environmental damage.

The Japanese Timber Wreck is the region's premier historical site. A massive sixty-metre steel cargo ship sank off Pulau Baik in the early 1980s. The vessel was carrying a full load of timber bound for Japan. The crew engaged the internal water pumps during a sudden squall to stabilise the rolling ship. They critically failed to turn the pumps off in time. The ship capsized and sank to an initial depth of 30 metres.

A timber company later dragged the hull closer to the island during a failed salvage attempt. The wreck now rests heavily on its starboard side on a sloping seabed. The port bow sits at 24 metres. The stern rises sharply to a highly accessible 5 metres. The steel hull has transformed into a spectacular artificial reef. Bright sponges and crinoids encrust the metal surfaces. It acts as a magnet for macro life in the immediate area. Trained divers can safely penetrate the engine room, crew cabins, wheelhouse and the massive emptied cargo holds. Visibility fluctuates based on coastal runoff. Heavy rainfall can push visibility below 10 metres. See the Blue Ring Hole and Timber Wreck guide and the Divernet report for full site details.

The outer islands offer a different environment to the inner bay. You will find deeper drop-offs and oceanic visibility.

Tabawan Island

Skill level: Beginner to Intermediate | Site depths: Turtle Station 15m; House Reef 26m This offshore island features natural fringing reefs and scattered patch reefs. Clear oceanic water brings good visibility. A commercial pearl farm keeps a restricted area here. That protection has spared the immediate reefs from historical fishing damage. The reefs have exceptionally healthy corals and resident sea turtles. Be sure to look for the unique glowing hues some corals display under specific light.

Laila Reef

Skill level: Beginner | Depth range: 5–15m A natural shallow coral garden located roughly 30 minutes by boat from Payang Bay. The site features minimal current and excellent visibility. It serves as an ideal location for Discover Scuba Diving programmes. The signature draw is the massive rose coral formations scattered throughout the seabed. These resemble giant underwater blooms frozen in time. Abundant reef fish weave through the intricate coral structures.

The Great Blue Wall

Skill level: Advanced | Depth: Deep; varies along the wall This is a massive manmade archaeological structure located near Bohayan Island. The British Borneo Timber Company constructed the wall from giant boulders in the 1950s. They used it as a deep-water shipping point to load harvested timber onto ocean freighters. The wall descends into deep water and experiences strong tidal movements. It appeals to divers looking for structural topography on specialist exploratory trips.

The environmental reality of Darvel Bay is complex. A baseline assessment published in Thalassas: An International Journal of Marine Sciences in July 2026 evaluated 12 reef sites across the bay. The researchers recorded 415 hard coral species from 81 genera. The offshore reefs exhibited impressive live coral cover averaging over 50 per cent. The reefs here largely escaped severe bleaching compared to other locations in Sabah.

Nearshore sites face distinct challenges. Reefs exposed to urban runoff from Lahad Datu exhibit an elevated prevalence of coral diseases. Areas close to the mainland estuaries suffer from severe marine litter issues. A 2021 study in the Marine Pollution Bulletin found extreme densities of discarded fishing nets and plastics near Sakar Island. The seabed there holds fifty-one items of marine litter per one hundred square metres. Dive operators deliberately avoid these degraded nearshore zones. They focus their itineraries on the clean offshore waters instead.

The fish population tells a different story. Decades of heavy fishing pressure have severely impacted the mid-level predator biomass. Historical blast fishing and pounding nets decimated the commercial fish stocks. A 2019 scientific expedition documented by Universiti Malaysia Sabah recorded 66 species of reef fishes. The data showed that small omnivorous damselfish made up 62 per cent of the population. This dominance is a classic indicator of a heavily disturbed habitat recovering from resource restriction. You should come here for the macro photography, the hard corals and the unique structural sites.

The bay does serve as a pelagic migratory corridor driven by high productivity. Whale sharks (Rhincodon typus) pass through the outer bay in season between March and May on their way toward Palawan. Schools of tuna migrate through the deeper waters from October to December. Sea turtles maintain a year-round residency near the offshore islands.

Safety is a critical working factor in Lahad Datu. Saltwater crocodiles inhabit the estuarine rivers and mangrove zones along the East Sabah coast. A fatality occurred at Sungai Silabukan in October 2025. Dive operators exercise extreme caution. They focus entirely on the clear offshore sites away from the river mouths. You should never swim or snorkel independently in murky nearshore waters.

Darvel Bay provides direct access to Borneo's premier terrestrial conservation areas. You can combine exploration of recovering coral reefs with premium jungle safaris in a single itinerary. This combination is structurally impossible to achieve efficiently from other dive hubs in Sabah.

The Danum Valley Conservation Area is an ancient dipterocarp rainforest located 70 kilometres west of Lahad Datu. The forest is one hundred and thirty million years old. It is renowned for wild orangutans and the Bornean pygmy elephant. The Tabin Wildlife Reserve offers mud volcanoes and natural salt licks that attract endemic species. You can arrange a Borneo combination package to dive the bay first and head straight into the rainforest.

Diving operates all year. The best visibility is from March to October. Water temperatures remain warm throughout the year. You should aim for the March to May window to maximise the chance of seeing migratory whale sharks. The when to dive Sabah guide covers regional weather patterns in detail.

Lahad Datu has its own regional airport. MASwings operates multiple daily turboprop flights from Kota Kinabalu to Lahad Datu. The flight takes approximately 55 minutes. These regional schedules change often. You should build buffer time into your travel plans.

The terrestrial route is straightforward. You can reach Lahad Datu by road from Semporna in roughly an hour and a half. The town is also connected by road to Tawau to the south and Sandakan to the north. See the travel information guide for full transfer details.

You must check that your travel insurance covers diving and boat transit in the bay.

Darvel Bay is for the adventurous diver. It fits those who want to see a destination before mass tourism arrives. It is positioned as the absolute opposite of Semporna. The appeal lies in the isolation rather than the luxury. Wreck divers will appreciate the shallow accessibility of the Japanese Timber Wreck. Coral lovers will enjoy the immense diversity on the offshore reefs. It is the perfect add-on for travellers heading to a Sabah Grand Dive Tour who want a few days of quiet exploration.

It does not suit divers expecting luxury yachts or polished resorts. Massive overwater resort facilities does not currently exist within the bay. The facilities are simple and clean. The boats are small coastal craft measuring roughly 19 to 23 metres. Expect a raw pioneering experience.

• Semporna
• Sipadan
• Mabul
• Lankayan
• Combine with Borneo

Send the team your planned dates, party size and diver certification levels. The team will come back with what can be arranged for your time in Lahad Datu. Let them know if you want to pair the diving with a rainforest safari.