On 23 September 2001, Tunas Hijau Club held three programs for campaign a clean environment. The first program was planting a hundred trees and cleaning Kali Mas‘ riverbank. This program invited a hundred pupils from local school. They planted Asem tree, Nyamplung tree and Tiara Payung tree that hope someday its make Surabaya greener.
After that, they poured it with a tank of water and made the cool circumstances on the bank. Not only planted a tree but they also cleaned the riverbank and collected more than fifteen waste bags.