The site of Capernaum is on the northwest shore of the Sea of Galilee, about one mile east of the Mount of the Beatitudes. This Synagogue of Capernaum is believed to be a first century synagogue. If so, Jesus probably would have taught here often. As Capernaum was Jesus' home base, it was here where he lived and ministered, as well as called his first disciples and performed scores of miracles.
Matthew 4:13
He went first to Nazareth, then left there and moved to Capernaum, beside the Sea of Galilee, in the region of Zebulun and Naphtali. (NLT)