RedactedNarrative: On 6/7/2020 at approximately 2:30 pm, V1 was backing from one of the docks at the Okoboji store going perpendicular to V2 which was moored on the Mau Marine cruiser dock.  Wind & current coming under the Hwy 71 bridge pushed V1 toward V2. Operator of V1 was unable to maneuver his vessel away from V2 and the bow anchor of V2 knock out the windshield. The anchor & guide were pulled from V2 by V1. No alcohol was detected.