Blue Corner, Palau:
A shallow coral shelf projecting into the ocean with vertical walls on both sides, this site hosts schooling reef fish and large pelagic swimmers. Grey reef sharks cruise along the wall that is alive with napoleon wrasse, dogtooth tuna, wahoo, giant grouper, chevron barracuda, pyramid butterflyfish, eagle rays, and turtles. Occasional visitors include hammerhead sharks, manta rays, sailfish, whale sharks, marlin, and whales.
Ulong Channel, Palau:
Watch writhing bait balls and the sharks that soar in to prey on them. The channel is lined on both sides with coral gardens, including stacks of plate corals that shelter glasseye squirrelfish, and soldierfish.
Peleliu Express, Palau:
Famous for its stunning steep drop-offs, the currents at this site create a nutrient-rich environment which attracts both reef fish and pelagic swimmers. Look for napoleon wrasse, oriental sweetlips, palette surgeonfish, rainbow runners, schooling jacks, snapper, red-toothed triggerfish, anthias, pyramid butterflyfish, sharks, barracuda, Giant groupers, tuna, and manta rays.
Shark City, Palau:
Contoured with sheer vertical walls and canyons, this reef’s residents include gray reef sharks, schooling barracuda, snappers, unicorn fish, pyramid butterflyfish, square anthias, moorish idols, napoleon wrasse, spotted eagle rays, yellowtail fusiliers, big-eye trevally and black snappers, as well as the occasional bull shark, silvertip shark, or hammerhead shark.
Eagle’s Nest, Yap:
A coral head along this sloping reef serves as a cleaning station for eagle rays, which can be seen circling and waiting their turn. Look for nurse sharks under ledges, as well as turtles. This dive is accessible from June through October.
Fanif Wall, Yap:
Inhabited by white-tip reef sharks, turtles and enormous anemones, this wall boasts an astonishing 45-metre/150-foot visibility. Swim into one of the “blue holes” to explore the remnants of a Japanese Zero that crash-landed in the lagoon.
Mi’il Channel, Yap:
Watch manta rays, as big as 4 metres/14 feet across, line up for a cleaning station. Look for trevally, black snapper, parrotfish, sharks, moray eels, turtles, eagle rays, dolphins and mahimahi.
Blue Hole, Guam:
Located off the Orote Peninsula, this vertical limestone chimney drops more than 18 metres/60 feet, where you can exit and drift up a wall to return to the surface.
Apra Harbor, Guam:
This harbor is dotted with wrecks of both ships (Japanese, German, and American) and planes.
Chuuk (Truk) Lagoon:
A wreck-diver’s paradise (and now officially an underwater museum), Chuuk holds the record of the largest collection of World War II wrecks in a single location. Dive on battleships, patrol boats, fuel tankers, bombers, tanks, cargo ships, landing craft, air fighters, submarines, Japanese Zeros, torpedo boats, gunboats and mine sweepers.