What is better than enjoying a luxury vacation while giving back to the environment? From these eco-friendly rentals near Sintra, Portugal, glampers will be able to sit back and relax, while protecting the environment. In accommodations made from the finest materials and built in incredible areas, glampers will really embrace nature at its finest. With all the fun activities to enjoy and the beautiful castles and palaces to roam around, you will never feel too guilty about splurging on an undeniable vacation all from the comfort of a remarkable glamping site. Do not wait now to visit these luxury eco-friendly rentals, near Sintra, Portugal.