RedactedNarrative: Unit 1 was heading towards Shem Creek approx. 1 hour before peak high tide.  The operator observed two signs on the western tip of Crab Bank, which he assumed were channel markers.  Upon approach to the signs, the foot of the motor struck the ground causing the bow of the vessel to go into the air and water came over the stern.  At that point, the operator got into the water and pushed the vessel off of the shore.  Once back afloat, he began climbing back into the vessel distributing weight to the port side causing it to capsize.  No injuries to report.