There's more to standup paddling than, well, paddling. At a weekly family jam at Burlington's Oakledge Park, kids toss Frisbees, twirl hula hoops and even go "skiing" while balancing on giant floating boards. Inspired by his own "anything goes"-style summer-camp experience, Paddlesurf Champlain owner Jason Starr is coming up with even more activities, such as jousting, to attempt on the lake this month. Using foam-covered paddles, kids will try to knock each other into the water. Whoever stays onboard the longest wins. Parents don't have to watch the action from the beach; during the jam, they paddle for free.