Blue hole
down to 91 m
Blue Hole
A vertical shaft from 18 m with a window onto the wall at about 40 m, and visibility that can reach 30 m or more.
- Experienced
- Whale sharks
Experienced≤40 m
SMS Cormoran
Dive site in Guam
German WWI transport scuttled in 1917 in Apra Harbor, now lying beside a WWII Japanese freighter.
- Max depth
- 40 m
- Level
- Experienced
- Best months
- Apr–Aug
- Entry
- By boat
The story
When the United States officially entered World War I, the captain of SMS Cormoran scuttled the ship in Apra Harbor rather than surrender it.
Source: guamdiveguide.com
The dive
A wreck dive from a boat.
Who it's for
Experienced≤40 mSource: guamdiveguide.com
Recommended minimum: Experienced (Deep Specialty, N3).
- DepthThe usual dive goes deeper than lower certifications allow.
- Low visibilityVisibility can be limited; good navigation helps.
Conditions
- Dive type
- Wreck
- Environment
- Open water
- Water
- Sea water
Season in Guam
- J
- F
- M
- A
- M
- J
- J
- A
- S
- O
- N
- D
- Best
- Good
- Possible
- Closed
- Not documented yet
Best months: Apr–Aug.
Source: diveadventures.com.auPrices in Guam
- One dive
- €78–81
- Try dive
- €72
- Open Water course
- €303–448
Prices found at the area's dive centres, not specific to this site. Details and sources
Where is Guam?
The point shows the Guam area, not the exact dive site.
More dives in Guam
Reef
down to 40 m
Gun Beach
Shore dive through a cable trench to the outer reef, where green turtles are common and eagle rays glide past the drop-off.
- Advanced
- Manta rays
Reef
down to 30 m
Gab Gab II
- Advanced
- Nurse sharks
Reef
down to 11 m
Piti Bomb Holes (Fish Eye)
- Open Water
- Blacktip reef sharks
Wreck
down to 37 m
Tokai Maru
A 1943 Japanese freighter lying against a WWI German ship: the only known site where wrecks from both world wars touch.
- Advanced
- Turtles
Reef
down to 21 m
Western Shoals
Apra Harbor reef whose top is covered with vast staghorn coral colonies home to thousands of small reef fish.
- Open Water
About this page
Values marked “Estimated” come from our original catalogue and are being checked against published sources one by one. Sourced values link to where they come from. Conditions change with the season, the weather and the tide: confirm with a local dive centre before you dive.