Maybe this would work for you? It's a hiking sim in the Rockies inspired by A Short Hike .. I think I abandoned it before getting any sort of gamification/objectives added :) It just came about because I found some surprisingly high resolution elevation data.

https://partlyatomic.itch.io/joy-of-hiking?secret=msqgiZefzz...

Edit: Just went back and replayed, forgot about the stamina mechanic. You need to end the hike when the bar is in the green to gain more stamina for the next day (either by hitting E at the "car" or Q)

Various in dev screenshots here: https://imgur.com/a/jrO6iYd