Off the Grid
Time Out says
A combination street festival/eating extravaganza, Off the Grid events take place all over San Francisco and feature a mind-boggling melting pot of ethnic cuisines, plus music, crafts, beer gardens and activities. Families shouldn't miss Picnic at the Presidio on Sundays (April–Oct), a giant gathering on the lawn of the Presidio's Main Post overlooking the Golden Gate, with food vendors, free lawn games, music and a “bubble bar” for grown-ups. Twilight at the Presidio (April–Oct) is a Thursday night “campout” with lantern-lit dining cabanas, cocktail service, Adirondack chairs, s'more fire pits and live music.