Guam government planning document that describes Asan Cut as a heavily used hook-and-line area.
Asan Cut is Guam's surf-sensitive shore dive with reef and wreck.
Asan Cut is Guam's surf-sensitive shore dive with reef and wreck.
A local guide is strongly recommended the first time because entry, exit, and timing are site-specific.
Asan Cut is Guam's classic cut-through-the-reef shore dive: hard coral outcrops and rock columns framing a sandy channel with enough relief to keep the route interesting. The open-water side can pull you toward deeper water, while the entry side is the real challenge. It is best suited to confident divers who can manage a surf-sensitive beach entry, read the current, and stay close to the site on the way in and out. Once through the cut, the reef pays off with a mix of fish, wreck history, and a more open run toward the outside.
Conservative baseline from public research. No community dives logged yet.
Depth range, seasonality, and planning context.
Reported Depth
8m - 58m
Depth Note
WWII landing craft reported in about 60 ft (≈18 m) of water to the north.
Best Season
Dry-season calm-weather windows with low surf.
Typical Conditions
Surf and tide state can dominate the site; visibility often improves beyond the cut, but the entry zone may stay turbulent.
Hazards, restrictions, and access requirements.
Key Hazards
Safety Notes
Treat the entry and exit as the hazard, not the reef itself. Only dive on calm, low-swell days with slackish tides, and be ready to abort if the cut is running.
Access Restrictions
Shore entry only works in very calm conditions; surf, tide changes, and rip currents can make the cut unsafe.
Legal Notes
Use the public beach access carefully, keep clear of anglers, and follow any park or surf warnings for the Asan shoreline.
Community notes to help plan your visit.
Scuba Diving
Includes a WWII landing craft wreck in roughly 60 ft (≈18 m) of water.
Freediving
Only confident freedivers should consider it, and only on very calm days. The cut and surge make it much less forgiving than a typical reef snorkel site.
Snorkeling
Not a casual snorkel site. Snorkeling is only reasonable in very calm weather near the protected edges and should not be attempted if the cut is running.
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
Guam government planning document that describes Asan Cut as a heavily used hook-and-line area.
Official surf-zone map that places Asan Cut in Guam's north-facing surf-risk area.
Site guide with entry, current, wreck, visibility, and marine-life notes.
Local dive site page emphasizing tide timing and strong-current risk.
Shore-diving review with rough-entry warnings, average visibility, and site wildlife.
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