great style and super unique concept. the clues are VERY sparse and mostly repetetive though. so in the end I still clicked randomly on all green spaces to find it. it's probably hard to create a balanced puzzle like that based on real places, but I enjoyed the tour through berlin none the less (I think it's the first time my actual home adress was featured in a game)
but I also wouldn't consider the place you are looking for a green area worth recommending ;-) it's mostly concrete and some patches of grass! I mean, have you ever been to Rehberge? now THAT is truly a magical green space...