Back to Scuba Gear

Palau Liveaboard Diving: Blue Holes, WWII Wrecks and Sharks

The beauty of this jewel of the Pacific unspools underwater in an endless array of marine life

By Patricia Wuest | Published On May 15, 2026
Share This Article : twitter
Aerial photograph of a tropical seascape featuring The Palau Aggressor II near multiple small, lush green islands surrounded by clear blue water.

The Palau Aggressor II.

Courtesy of Aggressor Adventures

Scuba divers vacationing in Palau will discover an exotic location that is pristine, adrenaline-pumping and breathtakingly beautiful. The emerald-green Rock Islands rise like gemstones from turquoise waters, while extraordinary marine biodiversity surrounds you at every turn. Whether you’re hooked into the reef watching a head-swiveling parade of sharks cruise past or photographing schools of butterflyfish, Moorish idols and unicornfish, Palau Aggressor II places you in the heart of a thriving, unspoiled ocean habitat.

The diving in this Pacific dreamscape centers around the Rock Islands, a UNESCO World Heritage Site of mushroom-shaped islets and hidden lagoons. Diving is available year-round, though some animal encounters are seasonal. Drift diving is the norm.

Vacation Vibe:

An epic Pacific adventure — dramatic drop-offs, current-swept channels, reef sharks and mantas, hidden lagoons and WWII wrecks.

Diving Blue Corner, German Channel and Palau’s Famous Reefs

At the world-famous Blue Corner, divers hook into the reef and let the ocean sweep past. Gray reef sharks patrol the drop-off while barracudas and jacks twist into whirling silver tornadoes. When you unclip, you drift across a vibrant seascape of hard corals alive with color and motion.

Diver in Palau on a wall of coral reef.

Palau is a year-round dive destination with an endless array of marine life.

Courtesy of Aggressor Adventures

German Channel is home to one of Palau’s most reliable manta ray cleaning stations. Divers settle into sandy patches while mantas glide overhead, circling and somersaulting as cleaner wrasses remove parasites from their undersides. It’s an unforgettable underwater ballet, often accompanied by reef sharks cruising in the background.

For drama, the sites rival living cinema. Enter on an incoming tide and drift past lettuce corals, towering sea fans and clouds of anthias. At times, the mouth of the channel fills with gray reef sharks. A sprawling coral garden invites slow exploration, where nudibranchs, pipefish and camouflaged scorpionfish are among the regular critter sightings.

Exploring Blue Holes and WWII Wreck Diving in Palau

Chandelier Cave offers an entirely different experience. A short swim through a tunnel opens into a cavern of three chambers adorned with delicate stalactites. Sunlight filters through natural skylights in the rock, illuminating the interior with ethereal beams of blue. It is an ideal setting for capturing a silhouette of your dive buddy suspended in cobalt light.

Nearby, the famed Blue Holes site features four large shafts in the reef that merge into a vast opening on a wall, where jacks, sharks and eagle rays frequently keep watch.

Palau’s history adds another dramatic layer. World War II-era aircraft and ships, along with their artifacts, rest in deeper water, particularly around Peleliu, where fierce battles once unfolded.

Underwater image of a diver on the Jake Seaplane underwater wreck in Palau.

The Jake Seaplane wreck in Palau.

Courtesy of Aggressor Adventures

The Iro Maru, sunk by American forces during WWII, sits upright in 120 feet of seawater and now serves as an artificial reef teeming with life. Its mast and gun turrets support thriving communities of unique colorful invertebrates and hard coral.

From the heart-pounding drift dives at Blue Corner to the moving explorations of World War II wrecks, Palau Aggressor II offers a one-of-a-kind underwater paradise.

Palau Aggressor II Yacht Specs

Length/Beam: 106 feet / 30 feet

Passenger-to-Staff Ratio: 18:7

Staterooms/Beds: 9/18

Bathrooms: Staterooms have private head and shower and individual climate control.

Sun Deck: Shaded area, chaise lounges, deck chairs, bar and grill.

Food and Beverages: All meals, snacks and beverages are provided, including a limited selection of local beer and wine.

Wi-Fi: Satellite internet is available for voice, data and internet.

Plan Your Palau Liveaboard Trip:

Phone: +1 706-993-2531

Toll Free: 800-348-2628 (USA/CAN)

Fax: +1 706-737-7690

Email: [email protected]

Web: aggressor.com