well ,I marked a skate park in my city. but you can do trials in it. If you have a SP to mark, where you can do trials, then mark it. ANYONE WHO WANT'S TO ADD A SPOT OR SOMETHING - PM ME OR ONE OF ALREADY SIGNED EDITORS YOUR GMAIL ADRESS. UPDATE FOR EDITORS:in description you should mention the name of the place, describe it, name what tricks can you do there and the apr height of the wall. Also, mention, whether the spot is popular or not. Riding spots are marked with blue pointer. Massive public gather places marked with yellow.(where you and your friends take your bikes at to dring and have a talk) if you want, you can mark your place of living with a red pointer so people would know who to ride in that area with. Also important. next time you ride, take a picture of the spot. type of camera is not important. what's more important - is to show the spot itself so people could clearly understand whether to go there or not. Thank you! DO NOT MARK YOUR BACKYARDS UNLESS YOU LET ANY TRIALS RIDER FROM ANY COUNTRY TO RIDE THERE ANY TIME HE WANTS