Vessel A travelled south at a slow speed then made a left turn behind the stationary vessel C.  Vessel A was operating navigation lights.  Vessel B was stationary alongside vessel C as Vessel A advanced to the east,  Vessel B accelerated to leave it's position.  When accelerating, the bow of vessel B lifted blocking the view of the vessel B operator.  Vessel B struck vessel A on the left side of the bow.  The operators of both Vessel A & vessel B admitted to drinking beer prior to the accident.
Finley                        