Photo Credit: Blane Perun TheSea.Org

Guam Coral Reef Maps

Last Updated on 02/18/2024

US Guam, one of the five unincorporated territories of the United States is an amazing place for any visitor, but perhaps even more so for those interested in coral diving. The largest island of Micronesia, Guam offers all the beauty of the Pacific Ocean: rich marine life and colors you can see nowhere else in the world.

One of the most spectacular dive sites and coral reef locations around the island is certainly the Blue Hole. The deep crevice has become the island’s signature attraction not only because of the possibility to dive waters that are more than 100′ deep, yet offer perfect visibility, but also because of the spectacular coral reefs populated by reef sharks, unicorn fish, large tuna and other amazing creatures.

The 11-Mile Reef is another amazing dive site – located at an 11-mile distance from the Guam shore, the reef creates a huge oasis of extraordinary, rich sea life, with sharks, corals and hundreds of other species.

Cocos Island is also a frequently chosen dive spot – the thick coral beds are populated with turtles, reef sharks and spotted eagle rays, to mention just a few dwellers of the waters around the islands.

Those who are looking for dives on the richest coral reefs in the region, the Coral Gardens and Gab Gab are must-see places. The coral formations in the Gardens and thick and very massive and the fauna specific of the reefs includes eels, Christmas tree worms and lion fish, while Gab Gab gives home to numerous crabs, shrimps and turtle species.

List of Dive Sites in Guam: A Subaquatic Journey

Guam, a United States territory in the western Pacific Ocean, offers a spectacular array of dive sites that cater to every level of scuba enthusiast. From the beginner-friendly shallows to the advanced depths where shipwrecks lie silent and coral gardens thrive, the island’s underwater world is as diverse as it is beautiful. We have compiled an extensive list of Guam’s most treasured dive sites, ensuring that your subaquatic adventures are both memorable and breathtaking.

Discover Guam’s Underwater Paradise

The tropical waters around Guam are not only warm and inviting, but they also boast visibility that often exceeds 100 feet, allowing divers to witness the abundant marine life and intricate coral formations in stunning clarity. Every dive site around the island has its own unique characteristics and history, providing an endless supply of discoveries for those willing to explore them.

Apra Harbor: A Dive Through History

Apra Harbor is not only a bustling port but also home to one of Guam’s most famous underwater attractions: the SMS Cormoran and the USS Tokai Maru. These two shipwrecks, from different eras and wars, lie intertwined at the bottom of the harbor, offering a unique dive experience where history is palpable.

Blue Hole: A Vertical Adventure

One of Guam’s most iconic dive spots, the Blue Hole, is a natural limestone formation that descends into a vertical shaft. Divers can descend into the abyss, surrounded by the vibrant hues of the coral and the watchful eyes of the reef’s inhabitants, making it a must-visit location for thrill-seekers.

The Coral Gardens: A Kaleidoscope of Life

Just off the coast, the Coral Gardens boast a rich biodiversity that rivals any terrestrial tropical rainforest. Here, divers can navigate through a labyrinth of soft and hard corals, home to an array of fish species, sea turtles, and occasional reef sharks.

Embarking on the Guam Dive Trail

The Guam Dive Trail is an initiative that encourages divers to explore a variety of underwater sites. With a dive passport available from local dive shops, divers can collect stamps for each site they visit, turning their underwater exploration into a rewarding quest.

Barracuda Rock: Where Predators Roam

Known for the schools of barracuda that often patrol the waters, Barracuda Rock is an exhilarating dive site. The rock formations provide an excellent backdrop for photography and an adrenaline-pumping experience as divers encounter these sleek, powerful fish.

The Crevice: Into the Depths

For divers looking for a more secluded experience, The Crevice offers a narrow canyon-like formation that descends into the deep. With walls covered in sea fans and sponges, it’s a surreal experience akin to exploring an underwater cathedral.

Preserving Guam’s Marine Ecosystem

Guam’s marine ecosystem is as fragile as it is beautiful. We are committed to promoting sustainable diving practices that ensure the preservation of this natural wonder for future generations. Divers are encouraged to follow all conservation guidelines and respect the underwater environment.

Tumon Bay: A Snorkeler’s Dream

Not all of Guam’s underwater treasures require a scuba tank. Tumon Bay, with its clear, shallow waters and protective reef, is an ideal spot for snorkelers and those who prefer to stay closer to the surface. Here, the vibrant marine life is accessible to all.

The Night Dive Experience

For a different perspective, night diving in Guam is an otherworldly experience. Bioluminescent creatures and nocturnal marine life, such as octopuses and moray eels, emerge from their hiding spots, turning the ocean into a living, breathing light show.

Dive Safety and Preparedness

Safety is paramount when exploring Guam’s dive sites. We advocate for thorough preparation, including equipment checks and awareness of the local weather and sea conditions. Divers should always dive within their certification limits and consider the services of local dive guides to enhance their experience.

FAQs on Diving in Guam

  1. What is the best time of year to dive in Guam?
  2. Are there any restrictions or permits required for diving in Guam?
  3. Can beginners find suitable dive sites in Guam?
  4. What kind of marine life can I expect to see in Guam?
  5. Are there any ecotourism initiatives for divers in Guam?

In conclusion, Guam presents a world-class diving destination with an array of dive sites that cater to every preference and experience level. The island’s commitment to preserving its natural resources ensures that these underwater wonders will continue to captivate divers for years to come.

Blane Perun

Explorer - Photographer - Diver

Blane Perun has 2522 posts and counting. See all posts by Blane Perun