30 years back, my father walked 23 miles or 34 kilometers to his office when he was age 47, since that day there was public transport strike.
34 kms! Wow! At the age of 47, that is really something. I don't think I can do that. I might collapse.
My father had blisters on his feet after walking 34 kilometers that day.
I'm sad because in the end your father's condition is like that, so how is't now? Can he still be able to do activities?
I find funny due to "since". Somebody is concerned about health of OP father for the incident that happened 30 years ago.
No body is worried about public transport strike that now lasted for more than 30 years.