Tagi Beach Reef, located at the southern end of Pulau Tiga, features a diverse topography of seagrass beds interspersed with coral patches. This site is suitable for beginners, offering a shallow environment with depths ranging from 2 to 10 metres and an average of 6 metres. Divers and snorkellers can access the reef directly from the shore. Conditions are generally mild, with visibility fluctuating between 5 and 20 metres. Water temperatures remain warm throughout the year, typically between 28 and 31 degrees Celsius. Facilities at the location include toilets, showers, changing rooms, and a dive shop providing air fills and guided tours.

House Reef at Pulau Tiga is a shallow, warm-water site suitable for beginner divers. The reef structure sits at depths between 5 and 10 metres, with an average depth of 7 metres. Visibility is moderate, ranging from 5 to 10 metres. Divers can access the site via shore or boat. Due to the presence of sea urchins and lionfish, divers should be cautious with hand and fin placement. The site features full facilities, including parking, toilets, showers, changing rooms, and a rinse station. Water temperatures remain consistent between 28 and 31 degrees Celsius throughout the year.

Dunlop Corner is a reef site located off Pulau Tiga, Malaysia, offering depths between 10 and 17 metres with an average of 12 metres. This site is suitable for beginners and accessible only by boat. Visibility varies from 5 to 20 metres, and water temperatures remain warm between 28 and 31 degrees Celsius. Divers should be prepared for moderate currents that can strengthen without warning. The habitat supports a variety of reef fish and invertebrates typical of the region. Hazards include the presence of lionfish and stonefish, requiring careful placement of hands and fins. Always maintain awareness of boat traffic and stay close to navigation points.

Pagong-Pagong Beach on Pulau Tiga offers a quiet snorkelling experience over patch reefs. Located on the north side of the island, this site features a sandy shore entry that leads into depths ranging from 2 to 12 metres, with an average depth of 7 metres. Conditions are generally mild, though visibility varies between 5 and 15 metres. The water temperature remains warm throughout the year, typically between 28C and 31C. This location is suitable for beginners looking for a peaceful, remote environment to explore the reef topography.

Pulau Kalampunian Besar is a shallow reef site located 2000 metres from the shore of Pulau Tiga. The site features a sandy bottom and fringing reefs, making it well-suited for both diving and snorkeling. Depths range from 1 to 8 metres, with an average depth of 4 metres. Visibility typically varies between 10 and 20 metres, and currents are generally moderate. Access to the site is by boat only. Water temperatures remain consistent, ranging from 28 to 30C throughout the year. Facilities including toilets, showers, and a cafe are available nearby. Divers and snorkelers should be aware of sea urchins and sharp coral in the area.

Larai-Larai is a reef site located on the western side of Pulau Tiga, Malaysia. This location features healthy hard coral structures and is frequently visited by boat tours as part of the Tiga Trail snorkelling circuit. The site is suitable for intermediate divers and snorkellers, with a snorkel rating of 4 out of 5. Access is by boat only, and visitors should expect moderate currents. Water temperatures at this site typically range between 28C and 31C throughout the year.

Pulau Kalampunian Damit, also known as Snake Island, is a reef site located 1500 metres from Pulau Tiga. Snorkelling takes place in the rocky shallows surrounding the islet, with depths ranging from 1 to 25 metres and an average depth of 3 metres. Access is by boat only. Conditions vary, with visibility between 5 and 20 metres and mild currents. The site is suited for intermediate snorkelers. Hazards include jellyfish, sea urchins, sharp coral, strong currents, and low visibility. Water temperatures remain consistent between 28 and 30 degrees Celsius throughout the year.

Coleman Shoal is a submerged reef system and sandbar located northwest of Pulau Tiga. The site features large barrel sponges and coral formations. Divers and snorkellers can expect depths ranging from 3 to 22 metres, with an average depth of 12 metres. Due to its exposed position in the open sea, the site is subject to moderate currents and occasional strong currents. Visibility varies between 5 and 20 metres. Access to this site is by boat only, as it is situated approximately 9656 metres from the shore. The site is suitable for intermediate divers and offers a snorkel rating of 4 out of 5.