Old bolts, old scary looking hangers, chossy top out to a sloping ledge encrusted in pigeon droppings and train brake pad soot. Most of the ground has been concreted below the climbs making falls just that little bit extra daunting. Make sure when topping out you lay flat under the tracks on the sandstone ledge and wait for a train to rocket past about 1m from your head for the full experience.