Agios Ioannis at Kastri is a tiny church on the top of a 100 meter rock which is literally in the Aegean Sea. You will need to climb up more than 100 steps in order to get there but the view alone will reimburse you for you effort.

Legend has it that a fisherman from Glossa while returning home one night saw on the top of the rock a light. This incident reoccurred for several nights until a woman came in his dream and told him that where he sees the light there is an icon. The fisherman climbed to the top of the rock and found the icon of Saint John the Baptist. He then took it to a different location for safe keeping but the icon would return to its original place on the top of the rock. After a while he built a little church to protect the icon.

Agios Ioannis at Kastri is also the church the couple from the famous musical Mamma Mia portrayed by Meryl Streep and Pierce Brosnan got married in.

Directions: From the town of Glossa head towards the provincial road Skopelos-Loutraki and after about 200 metres take a left. You can follow signs for Agios Ioannis sto Kastri. A 5.5 km drive will get you to your destination.