The Roman Settlement
The Roman site showed severe disturbance by later Saxon activity, so it is not possible to determine exactly what buildings were there.
There was, however, a large amount of bricquetage – salt working debris. This clearly indicates the presence of salt working in the area. There are indications of other salt workings in the river valley as well.
It is possible that a large part of the Roman site has been lost to erosion, leaving just this outlying section of the site remaining.
The whole island seems to have been inundated in the fourth century due to rising river levels, making habitation impossible until the beginning of the seventh century, when the Saxons arrived.