Yellow Koko is a reef and drop-off site located off Siladen Island, Indonesia. Divers typically explore depths between 24 and 26 metres, where moderate currents are common. Access is strictly by boat, and visibility generally ranges from 5 to 10 metres. The site is suitable for beginners, though divers must remain close to their guide due to current fluctuations near the drop-off. Stonefish are a known hazard, so maintain neutral buoyancy and avoid contact with the reef. Species recorded around this area include wrasses, various lionfish, moray eels, and nudibranchs. Water temperatures remain warm, consistently between 28 and 30 degrees Celsius throughout the year.

Batu Pendeta is a submerged pinnacle located off Siladen Island, featuring a combination of reef, wall, and drop-off topography. The site ranges in depth from 16 to 40 metres and offers consistent visibility of 30 metres. Due to strong currents that can shift direction around the structure, this site is strictly for advanced divers with solid buoyancy control and drift diving experience. Access is by boat only. Divers should consult the crew for a briefing on current conditions before entry. Hazards include strong currents, lionfish resting in crevices, and sharks, which should be observed from a distance.

Garim Reef, located off Siladen Island, offers a relaxed reef diving experience suitable for beginners. The site topography ranges from 11 to 24 metres, with an average depth of 18 metres. Access is exclusively by boat. Conditions are generally calm with no current, and visibility typically fluctuates between 10 and 30 metres. Water temperatures remain consistent, ranging from 28 to 30C throughout the year. Local facilities provide air fills, equipment rental, and guided tours to assist divers. Mornings are recommended for optimal visibility before surface conditions change.

Canyon is a boat-access site located 200 metres off Siladen Island. The topography consists of a dramatic underwater canyon featuring walls and drop-offs that range from 16 to 30 metres in depth, with an average depth of 22 metres. Divers experience mild currents and consistent visibility of 30 metres. The water temperature remains between 28 and 30 degrees Celsius. Due to the presence of sharp coral and rocks along the canyon walls, maintaining neutral buoyancy is essential. Boat entry is required, and it is recommended to book a guided tour to navigate the site layout effectively and avoid contact with the reef.

Annie Point is a reef dive located off Siladen Island, Indonesia, accessible only by boat. The site features depths ranging from 13 to 27 metres and is suitable for beginner divers due to the calm conditions. Visibility at the site typically spans 10 to 30 metres. Water temperatures remain consistent throughout the year, generally between 28 and 30 degrees Celsius. Night diving is available at this location, offering a different perspective of the reef structure after dark. Local dive shops provide air fills and boat charters to facilitate access to the site.

Henri Point is a reef dive located off Siladen Island, Indonesia. The site features a reef slope extending from shallow water to a maximum depth of 24 metres, making it suitable for beginner divers. Access is by boat, and the site experiences mild currents. Visibility typically ranges between 10 and 30 metres. Water temperatures remain warm, consistently between 28 and 30 degrees Celsius throughout the year. Facilities including air fills, equipment rental, and guided tours are available. Species recorded around this area include wrasses, various nudibranchs, moray eels, lionfish, and the peacock mantis shrimp.

Tanjung Bintang is a reef site located off Siladen Island, Sulawesi. The topography transitions from a shallow reef into deeper water, reaching a maximum depth of 24 metres. This site is well-suited for beginner divers due to the lack of current, which allows for relaxed exploration and buoyancy practice. Visibility at the site typically ranges between 10 and 30 metres. Access is by boat, and local facilities provide air fills. Water temperatures remain consistent, generally between 28 and 30 degrees Celsius, making it a comfortable environment for diving.

Muka Kuala is a wall, drift, and reef site located off Siladen Island. Divers typically experience depths between 12 and 30 metres, with an average depth of 20 metres. The site is accessible by boat and is suitable for beginners, though conditions require caution due to potential down currents and shifting, strengthening currents. Visibility ranges from 10 to 30 metres. Guided tours are recommended to navigate the current conditions effectively. The site is open for night diving, with a typical dive duration of 50 minutes. Water temperatures remain consistent between 28 and 30C throughout the year.