Drivers are warned to slow down, watch for tail lights ahead, and be prepared to stop.
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.
While the game involves only water guns, witnesses can't always tell the weapons are fake and call police, Oxford OPP said.
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.