Lisa Sears, town waterfront director, left, and Bruce Balfour wade into Cochnewagon Lake on Saturday to help retrieve a lifeguard chair that vandals had tossed into the lake.

A broken rear window is seen Saturday on a school bus parked beside Monmouth Academy.

Lisa Sears, town waterfront director, left, and Bruce Balfour guide a lifeguard chair onto a trailer Saturday at the town beach in Monmouth. Vandals tipped over portable toilets and tossed two raised chairs and a garbage can into Cochnewagon Lake overnight.

A broken rear window is seen Saturday on a school bus parked beside Monmouth Academy.