Isn't one the uninhabited rocks of the scilly island called the "the Devil" (it is 90% submurged at high tide)?

and it gave rise to being "between the devil and the deep blue sea" since Admiral Sir Cloudsley Shovel is just one of the more notable people/fleets to have bump into the scilly islands unexectedly, and with a none to favorable outcome.

does any one know for sure?