While the game involves only water guns, witnesses can't always tell the weapons are fake and call police, Oxford OPP said.
The City of London will also be offering free recreational activities at community centres throughout the city on Monday.
It has five "cardinal" rules to remain safe and have fun while boating.
Toronto's Danny Jansen spoiled Tampa Bay's perfect game with an opposite field single in the eighth inning. The Rays defeated the Jays 4-3.
The Toronto Maple Leafs have named a Stanley Cup champion as their new bench boss.
A 31-year-old London man is accused of assaulting a woman in a hotel room after getting into a dispute over sexual services.
Some missing high priced executives in London, the funding battle for Safe Space and more are among this week's topics