You should check it out. The top part is just like a stair-stepping machine, except you’re outdoors in the fresh air. How unnatural.
The map link is above, here is the map. The trail starts on the south side of the Overlook on Washington Blvd and then winds down to Lincoln Blvd. (This photo is from before the recent changes, so you can’t see all of the new trail, FYI) From there, you can go wherever you want on Lincoln. The sand ladder to the nude part of Baker Beach is on the left: