Explore North Guam

Diving in North Guam offers an unforgettable underwater adventure, brimming with vibrant marine life and fascinating dive environments. The region is home to several marine preserves, such as the Pati Point Marine Preserve at the island's northern tip, known for its thriving coral reefs and diverse species. Here, divers can encounter colorful fish, sea turtles, and occasionally, reef sharks. The warm, crystal-clear waters provide excellent visibility, enhancing the experience of exploring these underwater worlds.

North Guam's dive environments are as varied as they are captivating. The Pit Bomb Holes Marine Preserve is a standout, offering a unique cavern diving experience in what were once thought to be bomb craters. The area's underwater limestone formations have created remarkable caves and swim-throughs, perfect for adventure-seeking divers. Many sites are accessible via boat, but shore diving is also popular, especially at Gun Beach in Tumon Bay, where easy access from nearby hotels makes it a convenient choice for tourists. Beyond the natural attractions, Guam's rich history is reflected in its underwater landscape, particularly in Apra Harbor. Here, divers can explore the world's only location where a World War I and a World War II shipwreck, the SMS Cormoran and the Tokai Maru, lie side by side, offering a profound historical diving experience. With its blend of natural beauty, diverse marine life, and historical significance, North Guam is a distinguished destination for divers.

Top Dive Sites Map

★★★★☆ Gun Beach

North Tumon Bay is popular with beach and boat divers alike. Rich coral growth and an abundance of fish (within the Tumon Marine Preserve) are found here. This site is home to several turtles and frequented by mantas. Depths from 3 to 10 meters.

1,399
Logs
393
Divers
20.0 m
⌀ Depth
16.0 m
⌀ Visibility

★★★★★ Agana Bay

Beautiful reef located in Agana Bay. Loaded with hard and soft corals with an abundance of reef fish. Only dived by boat. This is a great drift dive!

174
Logs
110
Divers
19.0 m
⌀ Depth
16.0 m
⌀ Visibility

★★★★★ Alupat Island

Just off Alupat Island, numerous Hard and soft corals with am abundance of reef fish. Great visibility and an occasional Manta Ray.this is an excellent night dive location and is always done by boat.

51
Logs
38
Divers
13.0 m
⌀ Depth
16.0 m
⌀ Visibility

★★★★☆ Palace Wall

Near the Sheridan Hotel (formerly named “The Palace Hotel“), this wall is a favorite for deep and extended range tech divers. Shallow reef flats suitable for all divers. Occasional Pelagics & Mantas are seen. Can be done from shore with a long walk and snorkel. Best in the summer months when the seas are calm.

11
Logs
10
Divers
23.0 m
⌀ Depth
22.0 m
⌀ Visibility

★★★★★ Hilton Wall

This site is full of sea fans, schools of barracuda, and great visibility. Shallow reef flats are loaded with colorful hard corals and a variety of reef fish. This site is only accessible by boat and is a great drift dive.

28
Logs
28
Divers
23.0 m
⌀ Depth
16.0 m
⌀ Visibility

★★★★☆ Big Blue

Corals, Rays, Schools of Barracuda, Turtles and great visibility. The curved sloping reef extends from near the surface to 130’+. Popular with beginner divers, this site is loaded with colorful hard corals and a variety of reef fishes and will be enjoyed by advanced to expert divers as well. Boat dive only.

193
Logs
101
Divers
15.0 m
⌀ Depth
11.0 m
⌀ Visibility

★★★★☆ Fai Fai

Usually done as a drift dive from a boat, finishing at Gun Beach. A great dive to view turtles and the occasional ray or even spinner dolphins on some dives. Easy for any level divers on most days.

22
Logs
18
Divers
17.0 m
⌀ Depth
18.0 m
⌀ Visibility

★★★★☆ Northern Caves

South of Haputo Beach, an entrance at 50’ that goes into a large opening in the cliff line with several exit points at the surface (no light needed). Easy for all divers, and a fascinating dive that can only be done by boat.

47
Logs
38
Divers
17.0 m
⌀ Depth
16.0 m
⌀ Visibility

★★★☆☆ The Pinnacle - Guam

Deep water reef with top at 120’. School of Barracuda, large fish, occasional sharks and rays, sea fans on both ends. Currents. This is a very advanced dive and requires an experienced deep or tech certified diver. Only accessible by boat when the seas are calm.

16
Logs
12
Divers
32.0 m
⌀ Depth
9.0 m
⌀ Visibility

★★★★☆ Double Reef - Guam

Northern dive site. 10-70’ coral reef with schooling fish, clear water, and great coral formations. Very easy for all divers & snorkelers and is accessible only by boat. Usually done in the summer months when the winds and seas are calm.

144
Logs
103
Divers
21.0 m
⌀ Depth
22.0 m
⌀ Visibility

★★★★★ Pati Point

Drift dive with possibility of high currents and moderate to rough seas. Barracuda, sharks, large pelagic fish, corals. Features a large cavern at 115’. This is an exciting dive for very experienced divers!

21
Logs
17
Divers
24.0 m
⌀ Depth
25.0 m
⌀ Visibility

★★★★☆ The Tunnel - Guam

Northern coral reef extending out from cliff line. Schooling fish, clear water, and great coral formations. A natural opening in the reef that starts at 35’ and exits at 45’. Caverns and sand channels abound in the area.

135
Logs
110
Divers
18.0 m
⌀ Depth
16.0 m
⌀ Visibility

★★★★★ Scuba Cut

Drift dive with possibility of high currents and surge. Schools of parrot fish, sharks, large pelagic fish, and some of Guam’s most pristine corals. A great dive that can only be accessed by a long boat ride and only when the seas are most calm.

6
Logs
5
Divers
20.0 m
⌀ Depth
30.0 m
⌀ Visibility

★★★★☆ Octopus Reef

North site near Uruno point, 15-110’. Lots of surge channels with vertical walls, tunnels, and steep Amphitheater shaped slope. Numerous octopus, large wrasses and parrot fish, and super clear water. This is only accessible by boat in the summer months and usually done as a drift.

51
Logs
42
Divers
22.0 m
⌀ Depth
16.0 m
⌀ Visibility

★★★★☆ Napoleon Cut - Guam

Northern reef from 10-130’ Sloping wall with sand channels, overhangs, and small sharks, barracudas, and unusual rock formations. Named for the occasional Napoleon Wrasse that may be seen here. The super clear water can only be accessed by boat and is usually done as a drift.

27
Logs
24
Divers
26.0 m
⌀ Depth
22.0 m
⌀ Visibility

Diving in North Guam

Guam's northern waters offer an intriguing mix of dive experiences that cater to both shore and liveaboard enthusiasts. Blue Hole is a notable dive site, renowned for its vertical cavern that opens to the vast ocean. It provides an exhilarating descent for divers seeking adventure. Another gem is the Tokai Maru wreck, a Japanese freighter sunk during World War II, offering a fascinating dive through history and marine exploration. For those interested in shore dives, Gun Beach stands out with its easy access and vibrant marine life, making it a favorite among locals and visitors alike. Night dives here reveal the enchanting dance of bioluminescent organisms, a truly unique underwater spectacle. The balance between shore and liveaboard diving in North Guam ensures that divers of all preferences can find their ideal underwater adventure, whether they seek thrilling wrecks or vibrant reefs teeming with life.

The best Months to dive in North Guam

North Guam offers favorable diving conditions throughout the year, with water temperatures typically ranging from 27°C–29°C/81°F–84°F. This stability makes it possible to dive year-round. However, divers should be aware of seasonal variations, particularly between December and April when trade winds increase, potentially affecting surface conditions and currents.

Visibility generally remains high, often exceeding 30 meters/98 feet, providing excellent opportunities to explore the vibrant marine life and coral reefs. The months of July to September can bring increased rainfall, which might reduce visibility slightly but usually doesn’t deter diving activities. Overall, North Guam is a reliable diving destination, although planning around the seasonal weather changes can enhance the diving experience.

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