Find a neighborhood that has swimming pools at most of the houses. Get permission from home owners to swim through their pool with a bunch of teenagers. The more pools the better (12 – 15 pools worked great). Start at the house where you are meeting for club. Kids must jump in the deep end and swim to the shallow end. Then they run to the next pool. Have containers of water at each pool for them to walk through to wash their feet before diving in. End at the house that was started from with swimming & snacks. Have a short club meeting before starting the pool hop. Promote this well and even contact the local news to cover it.