The rapid tide there is rather a danger though Jon. Once, my class were swamped by what resembled a miniature tsunami, and Jim, the coach driver, and I had to save them as best we could. I had half a dozen children clinging to my skirt, and Jim was grabbed by many of the boys.
We were all soaked to the skin, but luckily no-one drowned.
Afterwards, when writing up their experiences, most of the children (aged about 10) put "Holkham Hall was boring, but the scary sea was fantastic!"
I realise most dogs can swim, but their owners might not survive a tidal swamping.