
13 hotels in Zealand hold Green Key certification. Each one is audited by an outside body, on a schedule it does not set itself.
Wikimedia CommonsFeddet Strand ResortNature-rich beach and camping resort on the Danish peninsula of Feddet, with cabins, glamping, and family activities. Long-running eco profile: enviroIndependently certified
Wikimedia CommonsKragerup GodsKragerup Gods is a magnificent historic manor house estate dating back to 1327, offering a unique blend of heritage and activity. The property featureIndependently certified
Wikimedia CommonsComwell RoskildeComwell Roskilde is a modern property located in a scenic area overlooking the Roskilde Fjord. The hotel features contemporary guest rooms, a high-quaIndependently 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.