I remember one time when I was 23 (my son's age tomorrow, by coincidence), had been to a party in York, got well pissed , no money, no transport, and I lived in a rented a cottage 15 miles out of town.

I walked/staggered home in only about 4 hours, pausing occasionally in the odd hedge bottom.

Made it !

Wouldn't want to try it now though... probably dead after the first couple of miles.