The first stage (a walk) is a reflection of a profound realty: "I'm going for a walk"
The second stage (a hike) masks and denatures a profound realty: "I'm going for a walk and it's special because of the settler myth of 'the wild'
The third stage (an "urban hike") masks the absence of a profound realty: "I'm going for a walk and it feels special like a hike but it doesn't count as such because it's not in 'the wild'"
The final stage (trail running) has no relation to any reality whatsoever: "I'm going to run in the woods and bother people for 'fitness' (yeah right)"