Caesarea is an ancient port city located on the Mediterranean coast in Israel. It was originally an ancient Phoenician settlement and was rebuilt in 22-10 BC by Herod the Great under the Romans. The city was renamed at that time to Caesarea after the emperor Caesar Augustus.
Jesus spent time in Caesarea (see Matthew 16:13-17 and Mark 8:27-30) as did Peter (Acts 10) and Philip (Acts 8:40). Paul also sailed to Caesarea after his conversion and visited the city on his missionary journyies.