Continuing with obstacles, there are a number of Dragon's Teeth present on the beach. These were basically large metal pointed spikes sunk into the beach at half tide level designed to rip the bottom of enemy invasion barges. No sign of any concrete blocks, as the remains of the ones I've already blogged on at Thorpeness so I am wondering if these were just pushed into the beach as they are. Also many concrete 'A' frames, of which I have no idea what they were for!
Photo 1: Dragon's Tooth
Photo 2: Sketchup showing measurements
Photo 3: Concrete 'A' frame, purpose unknown
Photo 4: Measurements of 'A' Frame