Sometimes underwater resources are not underwater, but on land. Here in Pensacola Beach, Florida (and probably elsewhere), shipwrecks have been washed up on shore and covered by sand dunes. Storms, such as the October 1995 Hurricane Opal, sometimes expose these buried shipwrecks. Archaeologists from UWF were called in to identify the remains of this mystery ship.
This is a close-up of a side of the masted work barge exposed by Hurricane Opal. Note the drift pins, cleats, and crossed timbers.