The last time I took an extended trip I visited a European city whose layout required a lot of extended walking or riding on local transit systems.  It was pleasant for the initial day or so, but I quickly realized how badly out of shape I was.  When I returned home I promised myself that before I went on my next journey I was going to get in better condition so I wouldn’t have to soak each day after walking to see the sights.   That determination led me to take advantage of a Groupon