Canyons in Nusa Lembongan features dramatic reef topography with narrow passages that channel strong currents. This boat-access site is suited for intermediate divers, with depths ranging from 27 to 40 metres. Visibility varies between 10 and 30 metres, and divers should be prepared for significant thermoclines, with temperatures occasionally dropping to 16-20°C. Marine life recorded here includes Emperor Angelfish, Nembrotha Nudibranch, Clark's Anemonefish, various wrasses, Speckled Butterflyfish, Pacific Trumpetfish, Semicircle Angelfish, Dotted Anemone Crab, Yellow Boxfish, Grunts, Grainy Cushion Stars, and snails. Due to strong currents and surface surge, a delayed surface marker buoy is essential, and dives should be planned around slack water.

The Canyon at Nusa Lembongan is a challenging reef and drop-off site defined by its significant depth and strong currents. The topography features a wall that descends from 10 metres to 50 metres, with an average depth of 25 metres. Due to the powerful currents that can shift rapidly, this site is suited for intermediate divers with strong buoyancy control and drift diving experience. Boat access is required, and divers should monitor their depth and air consumption closely throughout the 45-minute dive. Visibility typically ranges between 10 and 30 metres, and water temperatures fluctuate between 24 and 28 degrees Celsius depending on the time of year.

Mangrove Point is a drift and reef site situated on the north side of Nusa Lembongan, Indonesia. The site features a gentle descending slope covered in coral, with depths ranging from 5 to 40 metres and an average depth of 20 metres. Access is by boat only due to the nature of the drift. Conditions include moderate currents and visibility between 15 and 30 metres. Water temperatures typically range from 25 to 29C, though significant drops to 16 to 21C can occur between July and October. The site is suitable for beginners and supports both diving and snorkelling, with night diving also available.

Toyapakeh is an extensive reef site featuring a colourful coral plateau, walls, and areas protected by bommies adorned with gorgonians and soft corals. Located 100 metres from shore, this site is suitable for intermediate divers and snorkellers. Depths range from 5 to 40 metres, with an average of 23 metres. Access is by boat only due to moderate currents and potential surge. Visibility typically spans 15 to 30 metres. Water temperatures generally range between 25 and 29 degrees Celsius, though thermoclines can cause temperatures to drop as low as 19 degrees Celsius, particularly between July and October. Hazards include strong currents, surge, sharp coral, lionfish, and stonefish.

Buyuk is a reef site located off Nusa Lembongan, Indonesia, featuring a wall topography suitable for both diving and snorkelling. The site is accessed exclusively by boat. Divers and snorkellers can expect depths ranging from 5 to 40 metres, with an average depth of 30 metres. Conditions vary, with visibility typically between 10 and 30 metres and moderate currents. Water temperatures fluctuate between 25C and 29C throughout the year. Due to the nature of the site, participants should be aware of hazards including boat traffic, strong currents, and the risks associated with deep diving, such as decompression and nitrogen narcosis.

Lembongan Dive Adventures provides shore access to a reef system ranging from shallow depths suitable for snorkelling down to 40 metres. The site is defined by strong currents, making it an intermediate-level location that requires solid buoyancy control and careful water assessment. Visibility typically ranges from 15 to 30 metres. Water temperatures fluctuate between 25 and 29 degrees Celsius, with cooler conditions often occurring between July and October. Species recorded around this area include reef manta rays, emperor angelfish, peacock mantis shrimp, and various nudibranchs. On-site facilities include a rinse station, showers, changing rooms, and equipment rental to support shore-based diving and snorkelling activities.

Warnakali is a dynamic drift and wall dive located off Nusa Lembongan. The site features a shallow reef top at 5 metres that transitions into a steep drop-off reaching depths of 40 metres. Divers experience varying conditions with visibility ranging from 10 to 30 metres and water temperatures typically between 25C and 29C. Due to strong currents, potential down currents, and significant depth, this site is suited for intermediate divers with solid buoyancy control. Boat access is required, and divers must remain vigilant regarding boat traffic and thermoclines, which can cause temperatures to drop to 22C during the July to September period.

Buddha Point is an artificial reef located in the channel between Nusa Ceningan and Nusa Penida. The site features several submerged Buddha statues and stupas resting at depths of 5 to 7 metres. Access to this site is by boat only. Due to the presence of strong currents, this location is suited for intermediate snorkellers. Visibility typically ranges from 15 to 30 metres. Water temperatures fluctuate between 27C and 29C, though thermoclines can occur in the channel. Snorkellers should be aware of potential entanglement hazards and the strong current conditions prevalent in this area.