Blue Corner in Palau's Rock Islands is considered by many underwater photographers and fish experts to be the finest dive on the planet. Strong tidal currents funnel past the reef corner carrying schools of grey reef sharks, white-tip reef sharks, barracuda, and enormous Napoleon wrasse, and divers use reef hooks to hold position while the fish action swirls around them. The wall itself descends from a shallow 10 m plateau into the deep blue of the Philippine Sea.
Cape Kri holds a Guinness World Record for the most fish species counted on a single dive — 374 species in one hour. This submerged point on Kri Island in Raja Ampat is exposed to open-ocean currents that deliver an almost overwhelming concentration of marine life, from metre-long bumphead parrotfish to pygmy seahorses. The dive is typically done as a drift from 5 to 28 m along the reef crest.
Apo Reef Natural Park is the second-largest contiguous coral reef system in the world and the largest in Asia, located in the Mindoro Strait west of Palawan. The outer reef walls host thresher and hammerhead sharks, schools of bumphead parrotfish, and spectacular wall diving from 5 to 40 m. The park's isolation from intense fishing pressure means fish biomass is dramatically higher than most Philippine reefs.
One of the Maldives' first dive sites to gain international renown, Banana Reef lies just north of Malé and is famous for its curved shape, colourful overhangs, and permanent population of oriental sweetlips and moray eels. Gentle currents make it accessible to divers of most levels, though experienced visitors will appreciate the blue-water pelagics that pass the reef tip. It is a superb introduction to Maldivian reef diving.
Batu Bolong — 'hollow rock' in Bahasa Indonesia — is a small rocky island surrounded by a reef pinnacle so rich with life that it has been called the Komodo region's greatest dive. The walls from 0 to 40 m are completely covered in sea fans, black coral, and soft corals in orange and purple, while the water column above teems with fusiliers, jacks, and hunting reef sharks. Strong unpredictable currents demand experience and a confident drift technique.
Castle Rock in Komodo National Park is a submerged pinnacle that rises from 40 m depth to just below the surface, generating powerful currents and upwellings that concentrate an astonishing biomass. Grey reef sharks, white-tip reef sharks, and giant trevally orbit the pinnacle while schools of bumphead parrotfish and barracuda fill the mid-water. This is one of Southeast Asia's most adrenaline-charged drift dives.
Cod Hole on the far northern Ribbon Reefs is legendary for its resident population of massive potato cod that approach divers with total confidence, sometimes reaching over a metre in length. The site is accessed mainly via liveaboard and sits at a comfortable 18 m maximum on a coral-rich reef plateau. Schools of barracuda, reef sharks, and vibrant soft corals round out one of the Coral Sea's most memorable dives.
Ras Mohammed National Park sits at the southern tip of the Sinai Peninsula where the Gulf of Suez meets the Gulf of Aqaba, creating nutrient-rich upwellings that support extraordinary biodiversity. Shark Reef and Yolanda Reef are the headline sites, featuring sheer walls, resident schools of barracuda and snapper, and the remains of the Yolanda cargo ship scattered down the slope. Visibility regularly exceeds 30 m, making this a must-dive Red Sea location.