Because you can’t travel across the country and not dip your toes in the opposite ocean, no matter how chilly it may be ;).
The best way to experience a place is to run across it.
Over the bridge and back, thirteen miles, because it’s easy to forget you’re running when you’re running over this.
Wandering the tourist-piers of San Francisco Bay; Alcatraz Island, Fisherman’s Wharf, Pier 39.