scubaguam.com · Dive Directory
Directory listing with depth, visibility, and drift summary.
Boulder Alley
Boulder Alley is a Guam drift-and-night dive along the Orote cliff line.
Scuba DivingBoatIntermediate12m - 27m
DeepWall
Boat access, a cliff-line drift, and a night-dive reputation make Boulder Alley a good fit for certified divers who want a straightforward Guam wall dive.
About Boulder Alley
Boulder Alley is a Guam boat dive along the Orote cliff line, where the route drifts between the Navy sea wall and Shark’s Pit. The site mixes boulders, wreckage, and a night-dive feel, so it works best for divers who like staying relaxed and letting the route carry them. Expect clear water, easy fish spotting, and a profile that can change quickly with the current. It is a strong choice when you want a site that feels lively without needing a complicated swim.
Safety & Access
Site Conditions
Strong current
Safety Notes
Keep buoyancy tight near the wall and plan for a drift rather than a fixed route.
Access Restrictions
Boat dive on the Orote Peninsula.
Where Is Boulder Alley?
Featured Operators
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Local Intel For Boulder Alley
Community notes to help plan your visit.
Scuba Diving
A boat dive that drifts between the Navy sea wall and Shark’s Pit, mixing boulders and wreckage with plenty of fish to inspect.
Freediving
Not an ideal freedive site because the route is a boat drift with deeper structure and changing current.
Snorkeling
The shallow edge is not the main attraction; treat it as a scuba boat dive rather than a snorkel spot.
Wildlife at Boulder Alley
Species commonly reported at this site, with direct links into their wildlife guides.
Research Estimate At Boulder Alley
Access · 4/5Simple entry
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Aquatic Life · 5/5Exceptional variety
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Facilities · 4/5Good facilities
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Crowd / Popularity · 3/5Moderate
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Current · 3/5Moderate current
Research estimate
- VisibilityResearch estimate
- 24m
