This really is a walk not to be missed: the coastline is beautiful.
In 2002 I walked from the little inlet of Porth Clais, (where St Non was supposed to have landed, I think?, and the port where all the material was brought for the building of the Cathedral) along the narrow scenic footpath bordered with wild flowers. When you get to St. Non's chapel with its old cross, you are also really close to the picturesque Holy Well. Then just up the hill from there is a tiny modern chapel with a lovely atmosphere: well worth a visit. If I remember correctly, I went on up the hill to a lane which connected with the town, and walked back that way.
When in St David's don't miss the Cathedral as it is wonderful - less tampered-with over the centuries than English ones, so seems more atmospheric.
Something is not right. This message is just to keep things from messing up down the road