Easy access from Sentinel car park, the trad routes on the buttress are seldom climbed (Routes on Sentinel tend to be better quality, and have a real summit), but the Via Ferrata is incredible.
Approach af for the Chain Ladders from Sentinel Car Park. Beacon Buttress begins at the neck between Sentinel and the Escarpment proper, and extends North/Northwest to the Chain Ladders. Each route will have more specific beta.
Down the Chain Ladder, or Descent gully (the first gully after the neck).