RedactedNarrative: Watercraft #1 was tied to the dock and unoccupied. Watercraft #2 was leaving the dock when it struck WC #1. The operator of WC #2 had turned the boat to the port side, which swung the stern side of her boat towards WC #1. The swim platform on WC #2 hit WC #1's stern swim platform, causing a crack in the fiberglass hull of WC #1. There were no injuries and alcohol was not a factor.