This wreck is along the breakwater 4 miles from the USO and is a great wreck training dive from shore or boat.
It's an old barge sunk in the 1960's when the breakwater was buiilt and is covered in coral growth,
On shore there is parking and an obvious entry. Follow the cables underwater to 50 feet then swim out.
The wheelhouse is on the stern and there are plenty of open entry points. As with all wrecks, watch the silt and never take your reg out in an air pocket.
Facts about American Tanker, Apra harbor

• It is in Guam
• American Tanker, Apra harbor is in the Philippine Sea.
• The typical depth is 0-40 Metres 0-130 Feet.
• The typical visibility is 3-10 Metres 10-30 Feet.