RedactedNarrative: VESSEL 1 IS A RENTAL PWC. VESSEL 1 OPERATOR STATED HE DID REVIEW VIDEO OF OPERATION AND LAWS PROVIDED BY LAKE DELTON WATER SPORTS BEFORE RENTAL OPERATION.  OPERATOR OF VESSEL 1 STATED HE HAD ONE PRIOR EXPERIENCE WITH A PWC THREE YEARS AGO.  OPERATOR OF VESSEL 1 ADVISED HE WAS TURNING AND SAW THE BOAT LIFT AND LET GO OF THE PWC THROTTLE BUT THE PWC DIDN'T SLOW DOWN NOR WOULD IT TURN.  VESSEL 1 STRUCK THE BOAT LIFT CAUSING SEVERE DAMAGE TO THE LIFT AND A BOAT THAT WAS ON THE LIFT.  OPERATOR OF VESSEL 1 DID NOT SPEAK ENGLISH VERY WELL AND PASSENGER DID TRANSLATE.