Why did William I establish his base at Hastings after landing in England?

After landing at Pevensey on September 28, 1066, William I moved his forces to Hastings to establish a fortified base of operations.12

He chose this location and fortified the position because he was determined not to lose contact with his ships until he had successfully defeated the main English army led by Harold II. By securing this coastal bridgehead, William was able to organize his forces—consisting of 4,000 to 7,000 cavalry and infantry—while simultaneously exploring and ravaging the surrounding area to draw Harold into battle.21