Hairball One is a muck and reef site located off Siladen Island, Indonesia. Divers typically explore depths between 3 and 30 metres, with an average depth of 15 metres. The site requires boat access and is suited for intermediate divers. Conditions feature mild currents and visibility ranging from 10 to 25 metres. Marine life frequently recorded here includes painted frogfish, snowflake moray, and striate anglerfish. Less common sightings include coconut octopus, ornate and robust ghost pipefish, warty anglerfish, flamboyant cuttlefish, giant frogfish, wunderpus, harlequin sweetlips, fingered dragonet, ribbon eel, and chromodoris nudibranch. Hazards include entanglement, jellyfish, lionfish, low visibility, sharp coral, and stonefish. Night diving is available at this location.

Tanjung Kusu Kusu, located off Siladen Island, offers a diverse underwater environment where reef structures transition into muck terrain. The site is suitable for beginners, with depths ranging from 5 to 20 metres and an average depth of 15 metres. Divers and snorkellers can expect mild currents and visibility between 5 and 20 metres. Access to the site is by boat only. Water temperatures remain consistent throughout the year, typically between 29 and 30 degrees Celsius. The site is also available for night diving, providing opportunities to observe nocturnal activity in the reef and rubble zones.

Teluk Kembahu 3 is a marine dive site located 500 metres off Siladen Island, Indonesia. This site offers a combination of muck and reef topography suitable for beginners. Divers can expect depths ranging from 5 to 18 metres, with an average depth of 12 metres. Access is strictly by boat. Conditions include mild currents and visibility between 5 and 15 metres. Water temperatures remain consistent between 28 and 30 degrees Celsius, though occasional cooler thermoclines occur from October to December. Hazards at this site include potential entanglement, low visibility, and the presence of stonefish. Guided tours, equipment rental, and night diving are available.

Angel Window is a reef and pinnacle dive site located off Siladen Island. The site features a depth range of 8 to 30 metres, with an average depth of 25 metres. Access is by boat only, and the site is suitable for intermediate divers. Conditions include mild currents, though divers should be aware of potential surge and strong currents. Visibility at the site ranges from 5 to 30 metres. Water temperatures remain consistent throughout the year, typically between 28C and 30C. Facilities available include air fills, dive shops, and guided tours. Night diving is permitted at this location.

Batu Sandar, located off Siladen Island, offers a diverse underwater environment combining reef, pinnacle, and muck diving. This site is accessed by boat and is suitable for beginners, with depths ranging from 20 to 28 metres. Visibility is approximately 5 metres, making a dive torch useful for spotting small marine life. Divers can encounter species such as the ornate ghostpipefish, various nudibranchs including Chromodoris and Nembrotha, wrasses, flatworms, shrimp, sea stars, cardinalfish, crabs, and snails. Guided tours are available to assist with locating these species in the nutrient-rich waters. Equipment rental and air fills are provided locally.

Nudi Retreat on Siladen Island is a diverse site featuring a shallow coral bowl that transitions into a sandy slope with encrusted boulders and two mini walls. Depths range from 2 to 30 metres, averaging 15 metres. The site is accessible by boat and suits beginners, though divers should be aware of moderate currents and variable visibility between 5 and 20 metres. Marine life includes various nudibranchs, such as Chromodoris and Nembrotha, alongside Wunderpus, Peacock Mantis Shrimp, Flamboyant Cuttlefish, and several frogfish species. Other inhabitants include Coconut Octopus, Ornate Ghostpipefish, and Oriental Flying Gurnard. Water temperatures remain warm throughout the year, ranging from 28 to 30 degrees Celsius.

Kuda Laut is a shallow reef and muck dive site located off Siladen Island. The site features depths between 5 and 12 metres, with an average of 8 metres, making it suitable for beginner divers. Access is by boat, and the site experiences mild currents. Visibility typically ranges from 5 to 10 metres. Divers should be aware of stonefish in the substrate and avoid contact with the seabed. Sharp coral and rocks are present, requiring caution during boat entries and exits. Night diving is available at this location, and guided tours are recommended to navigate the muck environment effectively.

California Dreaming is a reef and pinnacle site located off Siladen Island, Indonesia. The topography consists of twin seamounts that support a variety of soft corals. Divers can expect depths ranging from 15 to 30 metres, with an average depth of 15 metres. Conditions are generally mild, with visibility between 10 and 30 metres and water temperatures consistently between 28 and 30 degrees Celsius. This site is accessible by boat and is suitable for beginners. Night diving is available, and typical dives last approximately 50 minutes. Facilities at the site include air fills, guided tours, equipment rental, and a cafe.