The hollywood Bowl has updated the 15 picnic areas with new tables. Arrive 90 minutes before show time (some picnic areas open as early as 4 hours before the concert) to claim one of the first-come-first-serve tables. The closer picnic areas go first (areas 6 and 7 are the most popular).
Large groups (30+) may reserve selected areas through the Group Sales Office: 323.850.2050. Here is the official Hollywood Bowl area map.