Keyhole

Type:

Scuba Diving

Entry:Unknown

Difficulty:Intermediate

Tags:

Wall

About This Dive Spot

Keyhole is a drift dive with an upper reef shelf suited to beginner divers, and it also provides access to a deep wall used by technical divers. Marine life commonly includes reef sharks, turtles, rays, pelagic fish, and a variety of reef fish.

Planning details

Reported depth and seasonality.

Depth note

Described as an upper shelf suitable for beginners with access to a deep wall for technical diving.

Safety & access

Hazards, restrictions, and required precautions.

Hazards

Strong currentDangerous wildlife

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.

Local intel

Community notes to help plan your visit.

Tailored notes for different activities.

Scuba

Works as a beginner-friendly drift on the upper shelf and as a starting point for technical divers heading down the wall.

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Spots Near Keyhole

📍 0.3 km

The Wall - Guam

⚓

A dramatic knife-edge wall with a steep drop-off, typically done as a drift dive. The wall is dotted with sea fans and small soft corals, with deeper sections suited to experienced divers. Along the cliff line there are moderate depths that can work for a wide range of divers, while the site extends much deeper for those with advanced training and appropriate planning.

📍 0.7 km

Spanish Steps

⚓

A clear-water site that can be accessed from shore through the Navy Base Guam area, though the dive is commonly done by boat as a drift. The drift typically starts inside a cove and follows the current either north or south. Marine life highlights include schooling baitfish and frequent squid sightings. A carpet anemone is a notable feature around 60 ft.

📍 1.3 km

Crevice

⚓

A large canyon feature begins around 60 ft, with high visibility and sea fans lining the walls. A shallow plateau makes the site approachable for a wide range of divers, while a deeper wall appeals to extended-range profiles. Divers commonly encounter turtles and reef sharks, with schools of barracuda and other pelagic species also possible. Currents may be present, and access is by boat only.

📍 1.6 km

Ron’s Reef

⚓

Ron’s Reef is typically dived as a drift, beginning near a harbor-area starting point and moving westward out of the harbor. The site is described as having clear water and a wide variety of fish. It’s popular with macro photographers and features a notable stand of blue coral in shallower depths, while larger open-water species may be seen passing through the area.

📍 1.6 km

Barracuda Rock - Guam

Not Set

A popular dive site along the Orote peninsula, known for occasional sightings of barracuda and frequent encounters with turtles and reef sharks. Depth varies from very shallow areas to deeper sections beyond 100 feet, with an average depth around 45 feet. Divers often report multiple green sea turtles around the site and nearby peninsula, and white-tip and black-tip reef sharks are commonly seen on dives.

📍 1.6 km

RMS Scotia (Wreck)

Not Set

The RMS Scotia was originally a British passenger liner and paddle steamer, once known for fast westbound transatlantic crossings. It later operated as a twin-screw cable layer after being converted in 1879. The site is home to a wide variety of reef fish, with white-tip and black-tip sharks often seen, along with green sea turtles.

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Frequently Asked Questions

What's the best entry point at Keyhole?

Entry at Keyhole is detailed in the spot description above. Look for specific landmarks, access paths, and any tide or condition requirements. Local divers often share updated entry tips in their dive logs.

What conditions are best for diving Keyhole?

Optimal conditions at Keyhole depend on several factors including tide, wind, and season. Check recent dive logs for current condition reports and patterns. Generally, calmer seas and high tide provide better visibility and easier entry.

What is the maximum depth and typical visibility at Keyhole?

Depth and visibility information for Keyhole can be found in the spot details and recent dive logs. Conditions can vary significantly based on weather, tide, and season. Always plan your dive according to current conditions and your certification level.

Are there any safety considerations or local etiquette at Keyhole?

When diving Keyhole, respect local regulations, marine life, and other water users. Be aware of any specific hazards like currents or boat traffic mentioned in the spot description. Follow Leave No Trace principles and local diving etiquette.