At mid-May we would be on a single-day journey between St-Govan's and Cardiff, with a visit at Kidwelly Castle.
Since we will be short on time we were thinking of combining B4319 +A4139 +A4075 +A477 +A40 +A484 +M4. Are there more scenic roads in the area (that would not add too much of time)?
Would you have suggestions of short (30-45 minute) stops or detours (charming village or walks) on the way that ones should not miss?
Thanks for any comment!