The Green Key award is the leading standard for excellence in the field of environmental responsibility and sustainable operation within the tourism industry. This prestigious ecolabel represents a commitment by businesses that their premises adhere to the strict criteria set by the Foundation for Environmental Education. A Green Key stands for the promise to its guests that by opting to stay with the Green Key establishment, they are helping to make a difference on an environmental level. The high environmental standards expected of these hotels are maintained through rigorous documentation and frequent audits. Green Key is eligible for hotels, hostels, small accommodations, campsites, restaurants and attractions.