I love this! Just the fact of walking with no purpose helps me think so much clearly. I often think a lot of my work gets done on walks. Sadly I don't do it enough.

You might find this app that someone told me about interesting: https://deriveapp.com/s/v2/about/

It helps exploring neighbourhoods in more spontaneous ways. It essentially gives you tasks (go to a crowd, follow a person with a dog, take a right on the next street). You follow it and then see where you end up! Always fun to discover places you would normally not visit.