In this Messenger Of Peace project, we went to Tung Tsz Scout Centre in Tai Po, Hong Kong to clear up the rubbish within the campsite as well as the areas nearby. By doing so, we hope to promote the concept of "leave no trace", as well as to minimize the harms brought by human activities to our nature. We hope that people in the world will pay more attention to environmental protection, so that together we can create a better world with less pollution.