Pulau Semak Daun is an uninhabited island in the Thousand Islands, Indonesia, featuring a reef environment suitable for snorkelers. The site offers a very shallow, sandy entry, allowing beginners to practice in waist-deep water before exploring the reef edge. Depths at this location range from 1 to 15 metres, with an average depth of 8 metres. Conditions are generally mild, with visibility typically ranging between 10 and 25 metres. Water temperatures remain consistent throughout the year, fluctuating between 29 and 30 degrees Celsius. This site is accessible directly from the shore and is well-suited for those new to snorkelling.

Monas Softcoral is a reef and artificial reef site located in the Thousand Islands, Indonesia. The site features a distinctive underwater replica of the Monas monument set against a sandy bottom. Divers can explore coral formations that resemble flowers, with depths ranging from 6 to 18 metres and an average depth of 12 metres. Access to this site is by boat only. Conditions include water temperatures between 29 and 30 degrees Celsius and visibility that can fluctuate significantly between 2 and 30 metres. Due to the potential for strong currents, divers should be prepared for varying underwater conditions. The site is suitable for beginner divers.

Karang Bolong is a reef dive site located in the Thousand Islands, Indonesia. The site features a consistent depth of 9 metres, making it suitable for beginner divers. Access to the site is by boat only. Divers should be aware of potential hazards including entanglement and periods of low visibility. Water temperatures at this location remain stable between 29C and 30C throughout the year. Typical dives at this site last approximately 45 minutes, with mild currents generally present. As a reef environment, the site is defined by its physical structure and topography.

Sea Garden in the Thousand Islands is a combination of natural reef and artificial structures located 50 metres from the shore. Divers can explore conservation swimthroughs and areas featuring soft corals. The site is suitable for beginners, with depths ranging from 5 to 18 metres and an average depth of 12 metres. Conditions include mild currents and visibility between 5 and 15 metres. Water temperatures remain consistent throughout the year, typically between 29 and 30 degrees Celsius. Shore entry is standard for this 45-minute dive. Facilities available on-site include equipment rental, guided tours, parking, toilets, showers, a rinse station, air fills, and boat charters.

Noodles is a drift dive site located in the Thousand Islands, Indonesia. The topography consists of a reef featuring channels and rich coral growth. Divers should anticipate moderate currents, which necessitate a boat entry for this site. Water temperatures remain consistent throughout the year, ranging between 29C and 30C. Due to the nature of the drift and the presence of moderate currents, this site is best suited for intermediate divers. Potential hazards at this location include the presence of jellyfish and strong currents. As a drift-focused environment, divers should be prepared for changing conditions during their underwater excursion.

Tabularasa Wreck in the Thousand Islands is a combined reef and artificial reef site suitable for beginners. Divers access the site from the shore to explore the wreck at a consistent depth of 9 metres. Conditions feature moderate currents and visibility ranging from 8 to 20 metres. Marine life recorded at the site includes the Copperband Butterflyfish, Maroon Clownfish, and various invertebrates such as the Varicose Wart Slug, Pustular Phyllidia, and Tiger Cowrie. The reef structure supports soft coral, hard coral, plate coral, and bubble tip sea anemones. Divers should be aware of sharp coral hazards. Guided tours are available, and the site is suitable for night diving.

Pulau Pari in the Thousand Islands features a combination of natural and artificial reef structures. The topography consists of a sloping bottom characterised by coral formations and interspersed sand patches. Divers can explore transplant coral areas located at a depth of 5 metres. The site reaches depths between 6 and 28 metres, with an average depth of 10 metres. Access is by boat only, and conditions are generally suitable for beginners, with mild currents and visibility ranging from 5 to 25 metres. Water temperatures remain consistent between 29 and 30 degrees Celsius throughout the year. Divers should be aware of sharp coral present at the site.

Tanjung Pramuka in the Thousand Islands features a varied topography consisting of sandy patches and coral structures. The site includes an artificial reef and a wreck, with a drop-off that allows for depths ranging from 3 to 28 metres, averaging 10 metres. Access is by boat only. Conditions include mild currents and visibility between 3 and 11 metres. Water temperatures remain consistent between 29 and 30C throughout the year. The site is suitable for beginners and supports night diving. Divers should be aware of potential hazards including boat traffic, currents, entanglement risks, sharp coral, and the presence of jellyfish, lionfish, stonefish, and sharks.