RAF Nefyn / Nevin
Chain Home
Many of the buildings survive though it is difficult to stop and photograph them because the roads are very narrow. There is a group of buildings around the farm Cefn Leisiog at SH27103750. Many of the original accommodation buildings are now used as houses.
There is group of buildings at SH 27745 37850, some of the buildings have been reused.
More information on this site and other radar stations in North Wales in this excellent book