Vessel A was navigating home.  10:00 p.m from York to Wells.  G.P.S. failure.  Overshot Wells Harbor.  Ran aground Folly Island, Cape Porpoise.  All persons on board wearing P.F.D.  Contacted Coast Guard.  Used flares and air horn to assist in location.  Swells were seven Ft.  Foggy.  Winds light.  four persons on board including the operator.  Two people treated at hospital and released. One for hypothermia and one for bump on head.
Kennebunkport                 