St David's Head
SM 730 280 The footings are still in place of a World War One submarine listening post. This was a hydrophone station which would attempt to locate and identify submarines entering the Irish Sea.
RAF St David's Head at Carn Llidi was a Chain Home Extra Low (CHEL) radar station in WWII. A flight of concrete steps leads to a concrete base with four brick cubes - the footings for a radar gantry. Nearby, the site of a machine gun emplacement can also be identified.
The remains of the Chain Home Extra Low radar station at Carn Llidi
This Lewis gun pit on Carn Llidi would have been surrounded by sandbags
