From Carmarthen, take the A40 as far as the St. Clears roundabout (approx. 10 miles). At the roundabout, take the A477, signposted Pembroke/Tenby.
At the Kilgetty roundabout, continue on the A477 towards Pembroke. After 1 mile turn right signposted Reynalton/Loveston. Continue for 0.75 of a mile then just after Langdon House , turn left into Langdon Farm.