Every year billions of people travel to many destinations around the world. Tourists want to immerse in local culture, environment, landscape, and heritage, etc.  That leaves a huge impact on the economy, society, environment, and natural resources. To nullify the negative impact and to create positive changes; the travelers must be conscious, careful, concerned, have positive intentions, and responsible towards the host destination. To prevent irreparable damage to the environment, culture, and natural resources by tourism activities; TREES inspires people to be responsible, ethical, and concerned by embracing sustainable practices.