It is a fortress of the Middle Ages. Located at the northern end of Skiathos and is approximately 3 hours on foot or 1.5 hours by boat. Worth a visit and walk through the cobblestone streets.
SKIATHOS SAILING GUIDE
The Castle (Bourtzi)
Monastery of Panagia Evanggelistria
Impressive stone monastery worth visiting. The monastery has a history and folklore museum and shop with products produced by the monastery, olive oil, wine etc.