This document discusses sustainable tourism. It defines sustainable tourism as tourism that takes into account its current and future economic, social, and environmental impacts as well as the needs of visitors, the industry, the environment, and host communities. Some key statistics about tourism globally are provided, such as there being over 1 billion tourists worldwide in 2013 and tourism contributing 9% to the world's GDP. Sustainable tourism focuses on economic sustainability, socio-cultural sustainability, and environmental sustainability. It aims to financially benefit local communities and protect local culture from commercialization. Examples of sustainable tourism practices are given.