After Fotina, a junction on the national highway leads to the Monastery of Petra and to the village named after it. From the old monastery, the only surviving part is that of the church, which was built in 1754 with materials taken from an older Byzantine building. There were contemporary additions to the monastery, a building that has served as a sanatorium before the war and a mental care home up until the end of the 20th century. The beautiful village of Petra is a starting point for those ascending the northern peaks of Olympus and has guest-houses and taverns. After Petra, the road leads to the mountain village of Kokinopilos, located on the side of Olympos that is overlooking Thessaly.