Skiathos, a Greek island in the northwest Aegean Sea, is part of the Sporades archipelago. It’s best known for its beaches and buzzing, youth-driven nightlife scene. The action centers around Skiathos Town, where bars and restaurants spill onto sidewalks along the old harbor and Papadiamanti street, the main pedestrian thoroughfare. Between town and the airport are many open-air, waterfront clubs.