On the western side of this parish, behind Arwinnick, the seat of Sir
Peter Killigrew, is a large pool, like a little harbour, between two
hills, but that it hath a bar of sand and pebbles, which keepeth out
the sea, like that of the Loe near Helston. It is commonly called the
Swan Pool, for that Sir Peter Killigrew, to whom it belongs, kept
abundance of swans here.
Trewoon, or Treoon, in this parish, the downy dwelling, or
house ―――― in the downs, was the seat of the Carnsews, who had their
name from their habitation at Carnsew in Mabe, where they formerly
possessed a fine estate, which, being wasted by extravagant living,
this barton was at first mortgaged, and a little after the late
Revolution, sold by Mr. John Carnsew to Joseph Trewinnard, rector of
Mawnan.