Deemed to be first of its kind and the largest River March in a metro, conceived to be executed by its concerned citezens, Mumbai is all set to witness, over ten thousand volunteers, from all walks of life to participate in one of the biggest Eco walks, which is scheduled on 6th March, simonteinously from locations adjoin, the four rivers, which over a period of time have becomes hubs of marine pollution, resembling nothing more than glorified gutters.