While attempting to dock on an incoming tide the Operator of Vessel A was approaching the dock with the bow in to the incoming tide and she misjudged clearance and struck the already docked vessel B. The damage to vessel A was on the starboard stern area, and on Vessel B the damage was on the starboard bow. I visually inspected both vessels and the damage to Vessel A was the stainless steel fender holder and the damage to Vessel B was a bent railing support and some scratches on the teak rub rail. The owner of Vessel B advised that he was getting ready for bed when he heard and felt the collision and upon investigating the noise he had to assist vessel A from under his railing.
Savannah                      