Twilight: Thursdays through Oct. 6, 5–9 p.m.
Picnic: Sundays through Oct. 9, 11 a.m.–4 p.m.
Main Parade Ground, Presidio
The city’s best picnic offers favorites from Off the Grid food trucks, lawn games, and music; celebrate evenings in a relaxed manner complete with lantern-lit dining cabanas, cabana-side cocktail service, Adirondack chairs, fire pits, and live music. Free, food/drinks/cocktails for purchase, 415-561-5300, offthegridsf.com, presidio.gov