This sucks. I was only able to manage 25 minutes of up and down those 63 steps wearing a 20lb pack. My legs are so wobbily it is really going to be miserable walking up the stairs to bed.
The only bright point is that I found a beautiful new part of a park that I had never been to.
Gonna give the body a day of rest tomorrow, maybe a leisurely walk at most, and see how the recovery goes.