When the weather reaches triple digits, spend a weekend floating the lazy San Marcos River and enjoying one of the most unique music festivals in the state. On July 22–23, the fourth annual Float Fest will take over Cool River Ranch’s 220-acre riverfront property in Martindale. Campers are invited to check in a day early to ease congestion as people make their way in and out of town—last year’s event brought in an estimated 10,000 ticketholders. A supercharged lineup this year includes Weezer, MGMT, Passion Pit, and Texas-bred musicians like Neon Indian, Walker Lukens, and Wild Child.