it started in sweden. i just decided to try it out in l.a. and kind of try to find a community. i just started my own. you jog and pick up trash along the way. pit love to work out and i love my city. so i just grabbed a plastic bag and wore my running fweer and went jogging. it filled up so quick. i ran three blocks and it was full. so i gathered a group of friends. we got bigger trash bags and started jogging around. really cleaned up the city. all you need is your running gear and a desire to make a change. it does involve jogging, but then you have to stop and bend over, you have to pickup litter around your neighborhood. so it does involve a lot of core strengthening. you re working on your back, you re working on your legs. it s muscle strength training. a lot of people have back issues, so definitely check with