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Official tourism page for Guam year-round diving and excellent visibility.
Dive Spot Guide•
Black Coral Kingdom
Black Coral Kingdom is Guam's tech-only deep reef.
Local operator required
Boat support and technical gas planning are essential for this site.
Deep Guam reef and wall with caves, black coral, and strong current; strictly for technical divers planning a serious current-and-depth dive.
About Black Coral Kingdom
Black Coral Kingdom is a deep Guam reef and wall with caves, tunnels, sea whips, fans, and black coral stands. It is a technical dive from the start, built for divers who want strong current, serious depth, and the chance to work through a complex reef system rather than cruise a normal recreational wall. Treat it as a planning dive: good gas discipline, overhead awareness, and a clear current strategy are part of the site, not optional extras.
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Research Estimate At Black Coral Kingdom
Conservative baseline from public research. No community dives logged yet.
VisibilityVisibility: 40m
AccessDifficult access
CoralPristine, vibrant coral
Aquatic LifeExceptional variety
FacilitiesGood facilities
Crowd / PopularityVery quiet
CurrentVery strong current
SurgeModerate surge
Where Is Black Coral Kingdom?
This spotNearby spotsExplore nearby spots on the map
Community sourced coordinates.
Black Coral Kingdom Planning Details
Depth range, seasonality, and planning context.
Reported Depth
34m - 61m
Depth Note
Described as having extreme depths and being suitable for technical divers only.
Best Season
Year-round, with the calmest and clearest window usually falling between April and August.
Typical Conditions
A deep reef-and-wall dive with caves and tunnels, strong current, and frequent pelagic movement through the site.
Safety & Access At Black Coral Kingdom
Hazards, restrictions, and access requirements.
Key Hazards
Strong currentOverhead environmentDangerous wildlife
Safety Notes
Use technical protocols, monitor gas and decompression closely, and treat caves and tunnels as overhead environments.
Access Restrictions
Technical divers only; extreme depth, strong current, and caves or tunnels define the site.
Legal Notes
Use technical gas planning, local briefing, and overhead-environment discipline before entering the site.
Local Intel For Black Coral Kingdom
Community notes to help plan your visit.
Scuba Diving
A tech-only deep reef and wall dive where caves, tunnels, and current make the profile advanced from the outset.
Freediving
Not a freedive target.
Snorkeling
Not a snorkel site.
Wildlife at Black Coral Kingdom
Species commonly reported at this site, with direct links into their wildlife guides.
Recent Logged Visits At Black Coral Kingdom
Community dive logs and visit reports for this site.
Dive Spot Log Averages At Black Coral Kingdom
Average conditions based on logged dives & visits.
Conditions
Avg. Visibility40m
Activity
No dive activity logged yet.
