From the Spyglass (or Taco Deli) entrance to the Greenbelt, the Geritol Wall is the second crag one reaches. Although it has just four routes, Geritol Wall is one of five crags clustered in the New Wall area; those crags are New Wall, the Terrace, Great Wall, Geritol Wall, and Random Wall.
The closest access point is the trailhead at the intersection of Spyglass Drive and Barton Skyway. There are various ways to get here; Google Maps is your friend for this.
From the trailhead, hike downhill and then turn right (upstream) when you reach the main multi-use trail. It takes 10-15 minutes to hike from the car to the wall, which appears on the right shortly after you pass through an opening in a fence. A use trail leads a few yards to the base of the crag. Note that this will be the second use trail after the fence, the first goes to Random Wall.
From left to right:
Nothing special; follow posted regulations.
All year, though this area bakes in the summer sun. Shade doesn't come on until late in the day.