He sounds like my husband biscuitmuncher. We were in London just before Christmas, and we walked everywhere. I wouldn't have minded so much, but we had oyster cards and could have used the tube, but no. I have now put an app on my phone called map my walk. Next time he wants to walk everywhere, I can show him the distance we've travelled.
I haven't got the staying power anymore and my right knee is very arthritic.
We really must tell our men when we've had enough.