My son become interested in Parkour about a year ago but I haven't really found anywhere indoors for him to train. I don't mean small classes, I mean a large indoor purpose build faciilty. I know this kind of activity is best done outdoors but when its cold and raining or he wants to learn skills safely I would love somewhere indoors. I am now thinking about starting up a large indoor Parkour centre in Sheffield for kids to learn in, adults to practice in and to host competitions, parties, overnighters etc. I have had some interest from investors but need to do market research to see if its viable or not. Has anyone got any thoughts on it? Would it be something you would be interested in going to?