First, the Presidio’s super-photogenic Batteries to Bluffs Trail with around 473 steps: east to west on the main trail, pix 1 thru 20.
Partway along, however, a detour this time for a walk down to and along Marshall’s Beach. Have always counted this offshoot trail separately from the main BTB, so add 49 steps for the Marshall’s: 21 thru 32.
Marshall’s Beach: 33, 34.
Part 2 upcoming: the Sand Ladder down to Baker Beach.