vs no rock armour at Sidmouth, Devon
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How do you protect the Eastern Beach?
Try rock armour, as this video from the Jurassic Coast trust at West Bay in Dorset suggests:
Protecting the Jurassic Coast – West Bay – YouTube
Which means burying lots of boulders:
West Bay Beach Works 2019 with Sam Scriven – YouTube
Compare another Eastern Beach on the Jurassic Coast:
Beach Management Plan: emergency survey – Vision Group for Sidmouth