Skiathos town and island is one of the best places I have ever seen and visited. Small traditional island, perfect for rest and doing nothing on the beach, more than 60 beautiful beaches. I think that the main quality of the island are beaches for every taste, clear water, traditional town and restaurants. Food was good and cheap except port restaurants. Lot of very good fast food, gyros pita rocks! Also Mythos beer is good. To make the town less busy, maybe you should dislocate the port from the center of
Skiathos Town. You will not make a mistake to go to Skiathos. It is one of the best Greek islands I have visited and it has the most gorgeous beaches. Do not be only on one beach, see all of them! Maratha and Lalaria are amazing. Could be better if also the beaches can be a night attraction, you know, with lights to have a night swim and beaches bars on the sand to play loud music.