In addition, there was damage and burning which entailed a fire risk, the municipality writes on its website.
Disturbing and risky traffic with jet skis also occurred in the water area.
The new rules mean, among other things, that camping may not take place within the municipality's public bathing areas.
The police were allowed to intervene both at sea and on land, and in order to minimize the reintroduction of the situation, the municipality is now changing the local regulations.
Added a group for the upcoming bathing season
Ahead of the upcoming bathing season, the municipality has appointed a group to work with various measures.
It is a collaboration with the police, representatives of the business community and residents of Varamon.
SVT Nyheter Öst reported last summer that Motala municipality has received several complaints regarding personal watercraft.
Johan Weber at the Sea Rescue Society said this at the end of July 2020:
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Johan Weber, the sea rescue society.
Photo: Axel Brantemo / SVT