
217 hotels in Ontario hold Green Key certification. Each one is audited by an outside body, on a schedule it does not set itself.
Wikimedia CommonsQuality Inn & SuitesModern hotel in High Level featuring contemporary guest rooms and essential business facilities. Ideally situated near local commercial hubs and regioIndependently certified
Wikimedia CommonsTravelway InnModern hotel located near the Health Sciences North hospital in Sudbury. Features contemporary guest rooms and essential amenities, providing a convenIndependently certified
Wikimedia CommonsDelta Kingston Waterfront HotelThis waterfront hotel is located in downtown Kingston, overlooking the historic Confederation Basin. It features modern accommodations and professionaIndependently certifiedGreen Key audits a hotel against roughly 100 criteria, some mandatory and some scored, covering water and energy use, waste separation, cleaning chemicals, food sourcing and staff training. A hotel applies, documents each criterion, and is then visited on site. Certification runs for one year, so a hotel keeps it only by re-submitting evidence and passing another visit. It is the largest scheme in this catalogue and the one you will meet most often across Europe.
Green Key measures management practice, not carbon. A large hotel with a pool and air conditioning can hold the certificate while using far more energy per guest than an uncertified guesthouse down the road — it is being judged on whether it manages its resources deliberately, not on the size of its footprint. The scoring is also weighted towards documentation, so a hotel with good records can outscore one that quietly does better.