I went down into Jamestown one evening, kindly invited round for dinner by a local. Rather than navigate a single-lane road winding down the hill into the valley, finding passing spots to give way to drivers coming up, I decided to park at the top and take the short cut down Jacob's Ladder. 699 steps take you down nearly 200m at an angle of up to 40°. How tiring could walking down a long staircase be? Surprisingly so. I watched a beautiful sunset and then set off. Seven minutes later I was at the bottom, knees aching, hand aching from gripping onto the handrail, mentally tired from watching my footing. Tripping on the descent would surely be lethal.