Skiathos is an Island with a big history and many interesting things and tourist attractions to see. The following sites are the best sightseeing attractions in Skiathos Island.
Medieval Castle; a ruined castle on the northern side of the island, accessible with the boat tour to Lalaria that also makes a stop at the Castle.
The Museum of Alexandros Papadiamantis; one of the best Skiathos sightseeing the house of Papadiamantis, a 19th century Greek writer whose family house in Skiathos is now turned into a museum.
The two monasteries of the island; the Monastery of Panagia (Virgin Mary) Evangelistria and the Monastery of Panagia Kounistra. Both monasteries are found in the countryside of the island and they are surrounded by lush forests of pine trees.