Elberry Cove bath house was built for Lord Churston in the 1700's, sorry can't find an exact date.
Standing 3 stories high with the ground floor being flooded when the tide rose, the Lord could swim into the sea through a gated doorway, preserving his dignity.
The buildings also held a "hot-bath" room where seawater was heated and pumped in to warm him up after a chilly dip.
It's quite an interesting look, although small, but imagining how rich you really must be to have had this "amusement" at the end of your garden - I totally see the use of it in days before wetsuits though!
Main Building...
Unknown machinery, I guessed a winch...
Inside, third floor lonely fireplace...
Cheers