Police in Nailsea dished out reward cards to youngsters to enable them to earn points for helping the community.
Officers came up with the idea for the Nailsea Reward Scheme to try to prevent antisocial behaviour problems which occured around the town last summer.
More: Increase in underage drinking and drugs in Nailsea.
Teens can collect stamps for joining a new club or for completing a job to benefit the town and there are three prizes up for grabs for each age group.
Children can also gain stamps for taking their parents along to activity taster sessions which will run in Millennium Park every Friday from 7-9pm until September.
MORE: Police launch reward scheme for youngsters in Nailsea.
At the end of the summer, cards will be entered into a prize draw. Cards and stamps can also be collected from the police station in Pound Lane.
Officers will be in the park again tonight (Friday) with police van.
Clubs which have committed to run taster sessions over the summer include Nailsea Shidokai Judo Club, Priority Football, Nailsea and Backwell Rugby Club and the Royal Navy and Royal Marines.
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