The 12th Annual Clarendon Day, billed as “Arlington’s Biggest Party” is set for Saturday, September 26th, 2009 from 11 a.m. to 7 p.m. Prior to the event there will be a Friday night kickoff at Whitlow’s with three bands beginning at 9:30 p.m. and a 5K/10K/Fun Run Saturday morning beginning at 9 a.m. Two stages will host musical performances throughout the day and a kids’ stage will have puppet shows and other entertainment for children. Many area food vendors will be set up along the street and local artists and retailers will be on display. Most activities will take place on Clarendon Blvd. and Wilson Blvd. between Highland and Irving Streets.