text: I can double check this soon, just to be 100% sure, but I know of no large island at this location. I'm thinking the Note is in the wrong place.
  
  What they might be referring to is http://www.openstreetmap.org/#map=19/52.53354/-1.37474
  
  This was added on OSM around a year and a half ago and matches their description, it's just a mile or so to the West of their Note.