Lumbalumba House Reef, located at Manado Tua, offers a diverse underwater environment featuring a combination of coral reef, artificial structures, seagrass beds, and sandy muck areas. Suitable for beginners, the site ranges from 2 to 18 metres in depth with an average of 14 metres. Divers and snorkellers can expect mild currents and visibility between 10 and 35 metres. Water temperatures remain warm at 28 to 30C, though occasional cooler thermoclines occur from October to December. Entry is via the shore, and the site supports night diving. Hazards include boat traffic, low visibility, and sharp coral. Species recorded around this area include Spotfin Lionfish, Broadclub Cuttlefish, and Painted Spiny Lobster.

Polytechnic Housereef in Manado Tua offers a diverse underwater environment combining natural reef, muck, and artificial structures. This shore-entry site is suitable for beginners, with depths ranging from 6 to 16 metres and an average of 12 metres. Visibility typically spans 10 to 30 metres. Divers should be aware that currents can be moderate to strong and may shift unexpectedly; planning dives around slack or incoming tides is recommended. The site is also accessible for night diving. Facilities on-site include parking, rinse stations, air fills, and gear storage. Species recorded around this area include Napoleon Wrasse, Giant Frogfish, Ornate Ghostpipefish, Indian Lionfish, and various nudibranchs.

Murex House Reef is a versatile shore entry site featuring a coral slope that transitions into a sandy bottom. The upper section, reaching depths of 12 metres, contains table corals. Below this, the sandy slope features patches of coral and artificial reef balls colonised by sponges and corals. Underwater trails facilitate navigation across the site, which is suitable for beginners. Divers can expect depths between 5 and 25 metres with an average of 10 metres. Conditions include mild currents and visibility ranging from 10 to 30 metres. The site is accessible for both diving and snorkelling, with night diving also available.

Tasik Ria Pier is a shore dive in Manado Tua that features a combination of natural reef and artificial reef structures. Divers can explore depths between 8 and 20 metres, with an average of 15 metres. The site is suitable for beginners, offering mild currents and visibility ranging from 10 to 25 metres. Marine life includes common sightings of spotfin lionfish, Indian lionfish, pufferfish, wrasses, and striped eel catfish. Less frequent encounters include robust ghost pipefish, giant frogfish, ornate ghostpipefish, broadclub cuttlefish, banded pipefish, ribbon eel, harlequin sweetlips, ocellaris anemonefish, and white-spotted puffer. The site is also accessible for night diving. Divers should be cautious of sharp coral and potential entanglement hazards near the pier.

Critter Circus in Manado Tua, Indonesia, offers a diverse underwater environment featuring muck, reef, and artificial reef topography. Divers can explore depths ranging from 3 to 40 metres. The site is accessible only by boat and is suited for intermediate divers. Conditions are generally stable with mild currents and visibility ranging between 10 and 30 metres. Water temperatures remain consistent throughout the year, typically between 27 and 30 degrees Celsius. The site supports night diving and provides facilities including air fills, equipment rental, and guided tours. Divers should remain aware of boat traffic and local marine life during their 60-minute dives.

Tasikria House reef in Manado Tua offers a diverse underwater experience by combining reef, seagrass, and muck habitats in a single shore dive. The site is accessible for beginners, with depths ranging from 10 to 30 metres and an average depth of 25 metres. Conditions are generally manageable, featuring mild currents and visibility between 10 and 30 metres. Water temperatures remain consistent, typically between 28C and 30C. The site is well-equipped with facilities including air fills, equipment rental, and rinse stations. Night diving is a popular option here, allowing divers to observe the reef environment after dark. Divers should exercise caution regarding sharp coral and rocks during entry and exit.

Whale bones is a marine reef and wall site located off Manado Tua, Indonesia. This drift dive site features a vertical wall topography that descends from 5 metres to 40 metres, with an average depth of 20 metres. Access is by boat only, as the site is situated 5000 metres from the shore. Divers should expect moderate currents and visibility ranging between 20 and 35 metres. The water temperature remains consistent, typically between 27 and 30 degrees Celsius. Due to the depth and current conditions, this site is suited for intermediate divers. Night diving is permitted at this location.

City Extra is a mixed-habitat dive site located near Manado Tua, Indonesia, featuring a combination of muck, reef, and seagrass environments. Suitable for beginner divers, the site ranges from 5 to 20 metres in depth with an average of 15 metres. Visibility typically spans 10 to 25 metres, and water temperatures remain consistent between 29 and 30C. Access is by boat only. Divers should be aware of moderate currents and potential surge or swell, which can shift positions in shallow areas. Night diving is available, offering a different experience of the terrain. A typical dive lasts 45 minutes.