Jay's Cathedral is an advanced dive site in Nusa Penida, Indonesia, characterised by vertical walls and boulder formations. This site requires a boat for access and typically involves a negative entry due to strong currents. Divers can explore depths reaching 30 metres, with visibility also extending up to 30 metres. Water temperatures generally range from 27C to 29C, though thermoclines can cause temperatures to drop to 25C. Due to the strong currents and potential surf, this site is strictly for advanced divers. Species recorded around this area include wrasses, peacock mantis shrimp, giant moray, and various pipefish, though these are not confirmed sightings at this specific location.

Batu Belandra is a reef and wall dive site located in Nusa Penida, Indonesia. Divers can explore depths ranging from 5 to 25 metres. The site is accessible via both shore and boat entries. Conditions are characterised by moderate currents, though divers should be aware of the potential for strong currents in the area. Visibility at the site typically ranges between 15 and 30 metres, with water temperatures remaining consistent between 27 and 29 degrees Celsius throughout the year. This site is best suited for intermediate divers due to the current conditions.

Gili Asahan in Nusa Penida offers diverse underwater topography including reef, muck, and artificial reef environments. Divers can expect depths ranging from 12 to 30 metres, with an average depth of 25 metres. The site is accessible by both shore and boat, though conditions include moderate currents and potential surge. Visibility typically spans 10 to 30 metres, and water temperatures remain consistent between 27 and 29 degrees Celsius. This site is suitable for beginners and supports night diving, with typical dive durations of 50 minutes. Facilities at the location include a dive shop and air fills.

Medan is a reef and wall site located off Nusa Penida, Indonesia, offering drift diving opportunities. The site ranges from 5 to 30 metres in depth, with an average of 25 metres. Divers encounter a variety of marine life, including common flatworms, rabbitfish, and occasional broadclub cuttlefish, T-bar Pantechnicon dorids, and various nudibranch species. Visibility typically spans 10 to 30 metres. Water temperatures generally range from 27 to 29C, though upwelling during the Mola Mola season can cause temperatures to drop to 16C. Hazards include moderate currents, surf, and thermoclines. Boat access is required, and beginners should stay close to their guide due to potential current changes.

Snorkelling reef at Nusa Penida is a shore-accessible site suited for intermediate divers and snorkellers. The topography consists of a shallow reef structure. Entry requires navigating a surf break, necessitating careful timing between sets to avoid being knocked off balance. Once in the water, divers must monitor moderate currents that can pull swimmers off course. Water temperatures typically range from 28C to 29C, though the south coast can experience cooler temperatures between 20C and 26C due to thermoclines. Visibility varies based on conditions, and it is recommended to arrive at slack tide for the most manageable entry and optimal visibility. Always maintain distance from the reef surface to avoid sharp coral.

Gili Goleng is a reef and artificial reef site located off the southwest coast of Nusa Penida, Indonesia. The topography consists of extensive hard coral formations. Divers can expect depths ranging from 7 to 25 metres, with an average depth of 15 metres. Access to the site is by boat only. Conditions are variable, with moderate currents and visibility typically between 10 and 30 metres. The site is suited for intermediate divers. Hazards include potential entanglement, sharp coral, and strong currents. Water temperatures remain consistent, ranging from 27 to 29 degrees Celsius throughout the year.

The Canyon at Nusa Penida is a complex underwater environment featuring a reef, wall, canyon, and drop-off. This advanced dive site requires boat access and is characterised by strong currents, with visibility ranging from 10 to 40 metres. Divers typically spend 50 minutes exploring depths between 18 and 30 metres. Marine life recorded here includes Harlequin Sweetlips, Banded Pipefish, Broadclub Cuttlefish, and various wrasses. Other species observed include Brownsaddle Clownfish, Squat Lobster, Razorfish, Moorish Idol, Vagabond Butterflyfish, Blackback Anemonefish, Pufferfish, Blue Dragon, Blue-spotted Wrinkle Dorid, and Dotted Anemone Crab. Due to strong currents in the Lombok Strait, water temperatures can drop to 18C, making a 5mm wetsuit recommended.

Gili Layar in Nusa Penida offers diverse topography including reefs, walls, pinnacles, and overhangs adorned with soft corals. Suitable for beginners, this site features depths ranging from 5 to 28 metres with an average of 15 metres. Divers can encounter common wrasses alongside less frequent species such as banded pipefish, broadclub cuttlefish, spotfin lionfish, harlequin sweetlips, scorpionfish, and various nudibranchs like Goniobranchus kuniei. Other residents include pufferfish, Pacific trumpetfish, and dotted anemone crabs. Access is available via shore or boat, with mild currents and visibility between 10 and 25 metres. Night diving is permitted at this location, which typically hosts 50-minute dives.