Operator dive-site listing with Keyhole depth, visibility, skill level, terrain, and wildlife notes.
Orote Peninsula drift reef with a sheltered plateau and wall edge.
Orote Peninsula drift reef with a sheltered plateau and wall edge.
Keyhole is an outer-reef drift site on Guam's Orote Peninsula, set between a broad upper reef plateau and a wall that drops away quickly offshore. Most recreational dives stay on the shelf, weaving past large boulders that break up the flow and hold reef fish, turtles, and passing pelagics. When conditions are manageable it works well as a guided drift for less experienced divers, while the same layout also gives experienced teams a convenient starting point for deeper wall profiles.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Depth Note
Described as an upper shelf suitable for beginners with access to a deep wall for technical diving.
Best Season
Guam can be dived year-round, with the best Keyhole days coming when outer-reef sea state and current are calm enough for a comfortable drift along Orote Peninsula.
Typical Conditions
Keyhole is usually dived as a clear-water outer-reef drift over a reef plateau with large boulders before the site falls away toward the wall. Conditions are current-sensitive rather than sheltered.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
This is described as a drift dive; plan for current management and keep awareness of depth changes near the deep wall, especially if approaching technical depths. Large marine animals including reef sharks are commonly present.
Community notes to help plan your visit.
Scuba Diving
Works as a beginner-friendly drift on the upper shelf and as a starting point for technical divers heading down the wall.
Species commonly reported at this site, with direct links into their wildlife guides.
Community dive logs and visit reports for this site.
Average conditions based on logged dives & visits.
Planning answers for access, conditions, timing, and site logistics.
Last Updated
Research Sources
Operator dive-site listing with Keyhole depth, visibility, skill level, terrain, and wildlife notes.
Guam tourism dive guide covering year-round diving, outer-reef visibility, and south Guam dive conditions.
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