Barnum's Wall is a reef wall located off the Ngemelis Islands in Palau. This drift dive site features a wall dropping to depths of 30 to 40 metres. Divers can expect moderate currents, though these can strengthen, requiring careful attention to dive computers and proximity to guides. Visibility typically ranges from 10 to 30 metres. Marine life recorded at the site includes wrasses, which are common, alongside uncommon sightings of spotfin lionfish, clown triggerfish, moorish idol, soldierfish, and emperor. Access is strictly by boat, and divers should maintain close proximity to their vessel during entry and exit due to the current.

Ngedebus Coral Garden, located off the Ngemelis Islands, features a reef slope extending from the shallows to a depth of 25 metres. With an average depth of 10 metres and mild currents, the site is well-suited for beginners. Visibility typically ranges between 13 and 30 metres, providing clear conditions for both divers and snorkellers. Access to the site is by boat only. Water temperatures remain consistent throughout the year, fluctuating between 29 and 30 degrees Celsius. The reef structure supports a variety of marine life, including Giant Clams, Pink Skunk Anemonefish, Napoleon Wrasse, Potato Bass, Giant Moray, Mandarinfish, Emperor Angelfish, Moorish Idol, Pennant Bannerfish, and Spotfin Lionfish.

Ngedebus Corner is a wall dive located at the edge of the Ngemelis Islands. The site features a shallow reef starting at 8 metres that drops sharply to 80 metres. Divers experience strong, unpredictable currents, requiring advanced buoyancy control and current-reading skills. Visibility ranges from 10 to 50 metres, providing a clear view of the vertical drop-off. Access is by boat only, and the site is suited for intermediate divers. Species recorded around this area include Napoleon wrasse, whitetip reef sharks, various angelfish, and giant trevally. Divers should exercise caution regarding sharp coral and rocks during boat entries and exits.

Big Drop-Off is a vertical wall dive located along the Ngemelis Islands. The reef shelf begins at 1 metre and descends sharply to 40 metres, with an average depth of 20 metres. Divers experience moderate currents along the wall, making it suitable for beginners who stay close to the reef structure. Visibility ranges from 15 to 45 metres. Water temperatures remain between 28 and 30 degrees Celsius, though cold thermoclines may occur in January and February. Access is by boat only. Divers must remain vigilant for boat traffic when surfacing and exercise caution regarding hand placement on the reef due to the presence of lionfish and stonefish.

Ferns Wall is a vertical reef structure located off the Ngemelis Islands in Palau. The site features a wall that descends from the reef top to depths between 20 and 35 metres, with an average depth of 28 metres. Divers access this location by boat. Conditions include water temperatures between 29 and 30 degrees Celsius and visibility ranging from 10 to 30 metres. The site is subject to moderate currents that can strengthen unexpectedly, requiring divers to stay close to the wall. Due to the depth and potential for strong currents, this site is best suited for divers who can manage their buoyancy and monitor their depth closely throughout the 50-minute dive.

New Drop Off is a vertical wall dive located on the outer edge of the Ngemelis Islands. The reef shelf begins at 1 metre and descends to 40 metres, offering a transition from a shallow coral terrace to a deep vertical face. Divers typically experience moderate currents and visibility ranging from 20 to 40 metres. Marine life includes Napoleon wrasse, Clown triggerfish, Regal angelfish, Titan triggerfish, Giant moray, and Harlequin sweetlips. Wrasses, Unicornfish, and Groupers are also common. Divers should monitor depth carefully and conduct safety stops on the shallow terrace at 3 to 5 metres to avoid accelerating currents at the wall edge.

German Channel Wall near the Ngemelis Islands in Palau is a reef and wall site suitable for beginners. Divers typically explore at depths between 17 and 25 metres, with an average depth of 18 metres. The site features a drift dive profile with mild currents, though conditions can shift. Visibility ranges from 10 to 30 metres in water temperatures between 29 and 30C. Marine life recorded here includes Napoleon Wrasse, Harlequin Sweetlips, various wrasses, groupers, and several species of triggerfish, unicornfish, and anemonefish. Night diving is available at this location. Always remain aware of boat traffic when surfacing and manage buoyancy carefully due to potential current changes.

German Channel is a man-made passage through the reef at Ngemelis Islands, Palau, functioning as a natural funnel for strong currents. This drift dive ranges from 3 to 40 metres, with an average depth of 18 metres. Divers encounter a variety of marine life including Napoleon wrasse, barracuda, groupers, and various species of triggerfish, wrasses, and butterflyfish. Crocodile fish and crab-eye goby are also present. Due to the strong currents and boat traffic, this site is suited for intermediate divers. Boat access is required, and dives typically last 60 minutes. Visibility ranges from 10 to 30 metres, with water temperatures between 28 and 30 degrees Celsius.