Taking a walk along the Dawlish seafront last night and happened to notice the brick pool area opposite the entrance to the seafront under the railway bridge was up to the top of the lower wall. Only had my phone on me so the photo's are a bit poor.
Also the sea wall has been scoured deeper than I have seen it in the last 12 years or so, in places the wall to the beach level is around 12 -15 feet deep.