As summer waits in the wings, there are a few things to signal its coming every year. BYU students leave and Provo becomes a ghost town. The schools start having their highly anticipated carnivals, field days, and end-of-year activities. And around here, the local park becomes a river, tempting all the local children to brave the freezing waters rushing down from the snow-capped mountains. It's a limited-time offer, so you have to take advantage before it's gone. But it is a test of will power and endurance for the tiny tots. Who can brave the chill the longest?