Rock Canyon may seem a bit far afield, but any beach bum worth his grain of sand is no stranger to committing a full day to a cool dip. And hey, it's closer than the coasts. On this beach, at the base of the 200-foot-tall, 10,500-foot-wide Lake Pueblo Dam, swimmers can enjoy their own private lake and swim beach. Huge cottonwoods rim the entire swimming area, offering protection from the scorching southern Colorado sun. Still, slather on the sunscreen before you wet yourself wild in the lake or on the water slide and bumper boats. Hot dogs and cold drinks are available for the picnic-challenged.