On the 12th, the feast is celebrated in Capernaum on the Sea of Galilee.
On the 13th, the feast of the Twelve Apostles is celebrated in the Church of the Apostles in Tiberias.
Related sites worth visiting:
Capernaum, “the town of Jesus” – ancient fishing village, the ancient Synagogue and the House of St. Peter.
Bethsaida, the birthplace of Saints Peter, Andrew and Philip - the ancient fishing village near the place where the Jordan river enters the Sea of Galilee.
“Jesus Boat” Museum in Kibbutz Ginossar.