Green Key is an international eco-label awarded to hotels, hostels, and other tourism-related establishments that meet strict environmental standards. It promotes sustainable practices, encouraging businesses to reduce their environmental impact through energy efficiency, water conservation, and waste management. To receive the Green Key certification, establishments must complete a rigorous evaluation process and demonstrate ongoing commitment to sustainability. This program not only helps protect the environment but also raises awareness among guests about the importance of eco-friendly practices in the tourism industry.