Seli National Ski Resort in Greece is a pioneering mountain resort founded in 1934, located at an altitude of 1530 meters on Mount Vermio. It offers 17 km of slopes with various difficulty levels, 14 km of descent, and a range of facilities including restaurants, equipment rentals, and playgrounds. The resort has a 4.5-star rating based on 2,273 Google reviews, with reviewers praising its great prices and amazing areas for skiing with friends and family.