Scuba Season
Underwater at American Tanker Wreck
African Giant Snail confirmed 25 days ago

American Tanker Wreck

Mariana Islands (Guam & Saipan) · United States

The American Tanker is a WWII-era fuel transport vessel resting on its starboard side in 32 m of water off Guam's north-east coast, its hull encrusted over 80 years of colonisation by black coral trees, enormous sea fans, and a thick carpet of encrusting sponges that have transformed the wreck into an artificial reef of extraordinary diversity. The cargo tanks are penetrable by experienced divers and contain intact gauges, valves, and pipe work that document mid-century industrial engineering, while the outer hull has been colonised by lionfish, scorpionfish, batfish, and large grouper that use the wreck as a permanent home rather than a transient resting point.

Conditions

Depth

12 to 35 m

Advanced depths

Current

Can be moderate

Can pick up on the edge

Visibility

18 to 28 m

Clearest in the calm season

Water

27 to 31°C

3mm wetsuit

Month by month

MonthJanFebMarAprMayJunJulAugSepOctNovDec
Water (°C)272727282829292929292827
Vis (m)252525252520181515202225
CurrentGentleGentleGentleStillStillStillModerateModerateModerateGentleGentleGentle

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Gear

  • Basic kit

    • Mask and fins
    • BCD and regulator
    • 3mm full wetsuit · warm water
    • Dive computer