Sunday, Aug. 14, 9–10:30 a.m.
Starts/Finishes: Little Marina Green (Yacht Rd. parking lot)
Start the morning with a trail run that includes baker Beach and the well-known Sand Ladder, 400 yards of a vertical climb. Headphones, strollers, and dogs strongly discouraged for safety reasons. $3, 415-978-0837, dserunners.com
