Starting at Splash Point: Before you start you may like to take in the view of Seaford Head. Walk a few steps eastward and you can access the groyne for a glorious view of the head to the east and across Seaford Bay to the west. The Town Council in conjunction with Seaford Community Partnership and Southern Water.
The broken groyne in the picture protected the old sewer outlet into the sea in the 1880's before the new pumping station was installed. The Head rises to some 283 feet (86 metres) and was topped by the earthworks, now largely lost to the sea, part of an Iron Age hill fort and evidence of subsequent Roman occupation. According to Historic England the earthwork is not a promontory fort but the remains of a Iron Age hill-fort. It is shown as complete in a map of 1587 when, as Burdyck Hill, it was the site of two Armada beacons, but it has suffered coastal erosion resulting in the collapse of the whole of the south west portion of the fort into the sea.
The large red brick retaining wall above is not a fortification or a sea defence. It is all that remains of Cliff Cottage, later the Splash Point Hotel.
However the East Fort (now lost to the sea) existed nearby from at least 1717 and was located on a shore platform immediately east of the older groyne. Later in 1795 this site was referred to as "Chinting" Castle although it appears to have been abandoned by this time. At the top of the head, the remains of a iron age encampment can just be seen. Dating from about 600 - 400BC, but a large portion of it has been eroded since its construction.
Original entrances can be seen in the North Western and Eastern ramparts. Roman debris found in the ditch appears to also show occupation at that time after a period of disuse. There is an Early Bronze Age, ~2,500BC, circular bowl barrow within the ramparts of the fort in the NW corner which I think can just about be discerned in this image. Flint axe heads, other tools and pottery have been unearthed here along with a barbed and tanged flint arrow head. Two rectangular structures in the NW corner (which has partly disturbed the South Eastern part of the barrow) and in the center are believed to be of WWll constructions
Turn around for a view of the Martello Tower. Before you lose the view inland the large building on raised land is Corsica Hall which has an interesting history. Once the home of the Fitzgeralds family it has since been a teacher training college and is now divided up into private flats. Corsica Hall was relocated to Seaford from its original site in Wellingham near Lewes between 1783 and 1786 by the Harben family, three generations of which occupied one or other of the sites. More information about Corsica Hall can be found here.
Continue along the promenade passing the Beach Huts towards the Martello Tower
If you are interested in the chalk geology between Seaford and Cuckmere Haven a detailed technical article can be found here.
More information about the Napoleonic Defences of Seaford can be found in Rodney Castleden's excellent book "Forlorn and Widowed - Seaford in the Napoleonic Wars" available from the Seaford Museum.