Portreath Harbour on a lovely sunny morning. Just above the harbour entrance is a small white building called a Huer's Hut where a man watched the sea for signs of Pilchard shoals when this coast landed enormous tonnages of the fish. The shoals suddenly disappeared from this area causing the death of the industry.
Under these sand dunes (Towans in Cornish) lie the remains of what was one of the worlds largest explosives factories during the First World War, and was in use until 1945.
See here for more information :- http://en.wikipedia.org/wiki/The_Towans#National_Explosives_Works