Ever wanted to take on rock climbing?  You can get started at Planet Granite.  This item is good for two beginner belay lessons. The belay lesson teaches you to manage the ropes (called belaying). A beginner belay lesson includes gear rental (shoes and harness) and a one-day pass. At the end of class, students will receive a temporary belay card so they can continue to climb and belay for the rest of the day!  You can take your lessons at the Sunnyvale, Belmont or San Francisco locations. 

 More info at http://www.planetgranite.com/