If that doesn't work, try riding a bicycle. You can adjust the pace depending on how you feel, and see a lot more than you would on a regular walk. If you pack a lunch, you can go pretty far, relax in a nice place, and head back.
How's biking in US outside of big cities? Cause it's the best place to bike in my country (Poland).
You just leave the city and turn to any random small road and you can relax. My favorite are the farming land near Lublin. 30 minutes from the city center there are roads where you pass 1 car per hour :)
I remember Taleb being really harsh on bike riding which he derided as “unnatural”. Though I can imagine his position being too extreme. I don’t think his proposed alternative of weightlifting is very “natural” either.
