I sprint my yard....I live in a suburb on about 3/4 of an acre. I make laps around my house in 20 second bursts for that there 4 minutes. I really don't give 2 spits what the neighbors thing of my antics . I also do handstands and walk on my hands in my driveway. Yes they all love me.
I have a drainage ditch i like to sprint; about 50 meters across, V-shaped, both sides about 15 degree incline with a 1.5 meter concrete drain-way at the bottom to jump across...