Little now remains of this once prosperous medieval fishing and ship-building centre. Nearby Aldeburgh has developed whilst Slaughden was lost to the sea; a process which was virtually complete by early in the 20th century. All that now remains is the modern sailing club and the Martello Tower; England's most northerly and also the largest ever built, having been constructed with a million bricks. The tower is an unusual clover-leaf shape, as it was there not only to defend against an attack from the sea, but also against an attack from the River.

As the sea encroached on the town, it often flooded so high that people would open all the doors in their houses so it could simply flow through - what a way to live!