Not really, this is one of several info markers in the car-park next to St Davids National Park Visitor Centre

“The newest facility which opened in 2008 is the Oriel y Parc Gallery. The National Park visitor centre has been extended to accommodate a gallery to house a state of the art gallery. Used to display national treasures including the works of Graham Sutherland who was a Pembrokeshire resident for much of his life. The gallery also has a cafe, resident artist and a Tourist Information Centre. It’s open all year and free of charge.”
Good place to stop off before visiting megalithic sites in the area.