The rear of Bawdsey Beach at the south end (south of point 13) was for many years static as it was protected by the beach ridge foreland. But by 2018, erosion of the foreland brought this part of the beach into active and dynamic behaviour - and in the years since, we have seen how this stretch of beach rotates in response to the relative strength and frequency of waves from the northeast or south. When the north end (points 2-3 in the plot above) erodes, sediment is moved south along the beach, where the south end (points 15 and 16 above) accretes. When the south end erodes, sediment moves northward and the north end accretes. For the last 3 years, the beach level response between north and south has been strongly correlated, but entirely opposite in behaviour. The limited sediment reserve here is shuttling back and forth along this stretch of beach.