Been doing this since I was about 12 up on a old primary school located actually right outside my house, it's abondoned so I can go inside as long as i'm careful with the police, and no one really bothers if we climb up and down all the walls with holes in it and the surprisingly really stable roof. I play tag with my friends in that full area, just to run around and practice, mainly for fun. There's also great places near me to use, theirs actually a video on youtube of a place i've been to before, i'll find the video and edit my post(It's a game of tag with the song "Body moving").