Follow the signs from the Black Horse Pub in North Nibley and not your sat nav.
Go down Barrs Lane (next to the Black Horse Pub, bare right at first fork where the sign says "Forthay". Go down the middle lane at the second fork, keeping the phone box on your right. Go past the houses, down the hill and round the corner. Weavers Cottage is on the left - look out for the signs.
Ample parking available.