The document discusses the concept of carrying capacity in tourism, highlighting the impact of overcrowding on ecosystems and local environments at popular tourist destinations. It provides examples of locations such as Mount Everest, Iceland's Fjaðrárgljúfur canyon, and Thailand's Maya Bay, which faced significant damage due to high visitor numbers, leading to bans and closures. Solutions proposed include promoting lesser-known attractions, off-season tourism, and involving local communities in tourism decision-making.