Spongebob is a marine dive site located in the Thousand Islands, Indonesia. The topography is defined by the presence of large seafans attached to the reef structure. Divers should note that the site features an open water depth limit, requiring careful monitoring of depth gauges during the descent and ascent. Water temperatures at this location remain consistent throughout the year, typically ranging between 29C and 30C. Due to the open water nature of the site, it is best suited for divers with appropriate training and experience in managing depth and buoyancy in varied conditions.

Jevry's Drop in the Thousand Islands is a multi-faceted dive site featuring a reef, drop-off, and canyon, with artificial reef structures present. The site is accessed by boat and is suitable for intermediate divers. Divers can explore depths reaching 30 metres during a typical 50-minute dive. Conditions include moderate currents and visibility ranging from 15 to 30 metres. Water temperatures remain consistent between 29C and 30C throughout the year. Hazards at this location include boat traffic, potential entanglement, surge, and sharp coral. Divers should exercise caution regarding visibility fluctuations.

Semak Daun is a shallow reef site located in the Thousand Islands, Indonesia. The site is characterised by a consistent depth of 4 metres, making it a suitable location for beginner divers. Access to the reef is by boat, and underwater conditions typically feature mild currents. Water temperatures remain stable throughout the year, ranging between 29C and 30C. As a shallow reef environment, it offers a straightforward diving experience for those looking to explore the local marine topography.

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.

Kayu Angin Genteng is an uninhabited island in the Thousand Islands, Indonesia, featuring a reef environment suitable for snorkelling. Access to this site requires a boat. The water temperature remains consistent throughout the year, ranging between 29C and 30C. Species recorded around this area include wrasses, butterflyfish, anemonefish, and various invertebrates such as nudibranchs and clams. As an intermediate-level site, it offers a quiet experience away from populated areas. Snorkellers should be prepared for boat-based entry and exit procedures while exploring the reef topography.

Pulau Gosong Perak is a submerged sandbar in the Thousand Islands that emerges only at low tide. The site features a reef slope with a drop-off, reaching depths between 1 and 15 metres with an average of 5 metres. Access is by boat only, and the site is suited for intermediate snorkelers due to the depth and potential for sharp coral. Visibility typically ranges from 5 to 15 metres with mild currents. Species recorded around this area include wrasses, anemonefish, butterflyfish, and various invertebrates such as nudibranchs and clams. Water temperatures remain consistent throughout the year, ranging between 29 and 30 degrees Celsius.

Genteng Kecil is a reef site in the Thousand Islands, Indonesia, offering depths between 5m and 25m with an average of 12m. The site is suitable for beginner divers and features a dedicated platform at 6m for skill practice. Access is by boat only. Divers may encounter moderate currents, and visibility ranges from 8m to 30m. Hazards include boat traffic, current, and low visibility. Night diving is available at this location. Species recorded around this area include wrasses, anemonefish, butterflyfish, groupers, and various invertebrates such as sea stars and slugs.

Bunder 1 is a reef site in the Thousand Islands featuring a gradually sloping contour. The topography consists of a combination of massive reefs and soft corals. Divers can explore depths ranging from 5 to 30 metres, with an average depth of 15 metres. Access to this site is by boat only. Conditions include mild currents and visibility that fluctuates between 5 and 25 metres. The site is suitable for beginners, with typical dives lasting around 45 minutes. Hazards to be aware of include boat traffic, currents, depth, and potential for low visibility.