Batu Mandi is a pinnacle and reef site located off Siladen Island, Indonesia. The topography features several pinnacles rising from a sandy bottom, offering a varied underwater landscape. Divers can expect depths ranging from 12 to 30 metres, with an average depth of 20 metres. Conditions are generally mild with visibility between 10 and 30 metres. Access to this site is by boat only, and divers should remain aware of boat traffic and potential currents. The site is suitable for beginners and provides a typical dive duration of 50 minutes.

Simone Point on Siladen Island offers a diverse underwater landscape featuring a reef, a wall, and a pinnacle structure. Divers typically explore depths between 18 and 30 metres, where visibility ranges from 15 to 30 metres. The site experiences mild currents, though surge and swell can affect the wall sections, requiring careful buoyancy control. All dives are boat-accessible only, and guided tours are available to assist with navigation across the varied terrain. Given the site's topography and potential for surge, it is best suited for intermediate divers. Water temperatures remain consistent, typically between 28 and 30 degrees Celsius throughout the year.

Tg Sampini is a reef dive located off Siladen Island, Indonesia. The site features depths ranging from 20 to 30 metres, with an average depth of 18 metres. Divers can expect visibility between 15 and 30 metres, supported by mild currents that make the site manageable for intermediate divers. Boat access is required to reach this location. Water temperatures remain consistent throughout the year, typically between 28 and 30 degrees Celsius. The site is best explored during morning periods when light penetration is optimal and currents are most predictable. Typical dive times at this location are approximately 50 minutes.

Yuki Point on Siladen Island is a diverse marine site featuring a reef, wall, and pinnacle topography. Divers can explore depths between 9 and 30 metres, with visibility typically ranging from 10 to 30 metres. The site is accessible only by boat and is suited for intermediate divers due to moderate currents and potential for strong current conditions. Marine life observed here includes ornate ghostpipefish, wrasses, Ambon cleaner shrimp, triggerfish, pink skunk anemonefish, red sea butterflyfish, humbug dascyllus, cardinalfish, and various snails. Water temperatures generally range from 28 to 30C, though occasional cold upwellings between 24 and 26C may occur, particularly during summer months. Night diving is available at this location.

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.