Wrecks from two world wars, a heart shaped blue hole, and tropical walls in the Western Pacific
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Overview
Guam blends accessible boat dives inside Apra Harbor with dramatic outer reef walls and historic wrecks. The island's dry season runs January to June, with July to November bringing more rain and the peak of typhoon risk. Water stays around 28°C and visibility often exceeds 30 m on walls like Blue Hole. Snorkelers love the Piti Bomb Holes and Tumon Bay marine preserves. Travel is straightforward via Antonio B. Won Pat International Airport, and U.S. entry rules apply. Expect American style convenience with Chamorro culture, plus daily dive charters from Cabras Marina.
Trip callouts
Tokai Maru and SMS Cormoran sit adjacent in Apra Harbor, letting qualified divers visit wrecks from WWI and WWII on one dive.
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Last updated: October 30, 2025 • 34 sources
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Expect 27°C to 29°C with light exposure protection for most divers.
Tumon Bay and Piti Bomb Holes are easy entries with abundant reef fish for families and first timers.
scuba
Why Guam for Scuba Diving
Guam delivers signature walls, photogenic macro at pinnacles, and historically significant wrecks. Boats from Cabras Marina reach Apra Harbor reefs in minutes and outer wall sites like Blue Hole and Shark's Pit along the Orote Peninsula. Operators such as Micronesia Divers Association and Guam Tropical Dive Station run daily charters and training, with nitrox widely available.
freedive
Why Guam for Freediving
Clear warm water, short boat rides, and drop offs close to shore make Guam attractive for line training and exploration. Drift along the Orote Peninsula cliffs, practice technique over harbor bommies, and time sessions for leeward conditions in the dry season.
snorkel
Why Guam for Snorkeling
Marine preserves make for easy, fishy snorkels close to hotels and family facilities. Piti Bomb Holes hosts schooling reef fish near an observatory, while Tumon Bay is a calm lagoon with sandy entries and coral patches.
topside
What to do when you are not in the water
Guam pairs war history with island vistas and village culture. Visit War in the Pacific National Historical Park at Asan and Agat, watch the sunset from Two Lovers Point, tour the Valley of the Latte by riverboat, and walk the pristine sands of Ritidian at the National Wildlife Refuge.
