A relic of the Herodian period, at the northern tip of the site of Caesarea, is an aqueduct (now partly buried in drift sand) which brought water from a spring 6km/4mi north of the town. There are two water conduits, and it can be seen at the broken south end that the right-hand channel was constructed first and the left-hand one added later. A second aqueduct was built some 100m/120yds farther inland.
