If you have a sat-nav set it for SA33 5JS and follow the instructions!
note though that if you have a Navman, just after you leave the dual carriageway in Carmarthen, it might tell you to turn right into the industrial estate - ignore it and continue straight on the B4312.
Head down the M4 motorway to its extreme western end (Junction 49) then continue straight on the A48
dual carriageway for another 15 miles until you reach Carmarthen.
See a map of Carmarthen here then see "After Carmarthen" below.
Come South down the M5 motorway to junction 8, then turn onto the M50 down to Ross-on-Wye where the
road becomes the A40 dual carriageway down past Monmouth.
6 miles south of Monmouth, you can either join the A449 dual carriageway down to Newport
where you join the M4, or you can stay on the A40 to Abergavenny where you have the further choice of staying
on the A40 all the way to Carmarthen (picturesque but narrow and windy) or following the A465
past Merthyr until it joins the M4 near Neath, then head for Carmarthen as above.
There is also a cross-country route: Shrewsbury - Welshpool - Newtown - Llangurig - Rhayader - Newbridge-On-Wye - Beulah - Llandovery, and if you have plenty of time, this is a very scenic route, following the Severn, Wye and Towy valleys. It can be quite fast unless you are stuck behind a lorry, as overtaking opportunities are very few.
If you cross to Holyhead, you are on your own! There is no direct route between North and South Wales.
Get a map and allow at least 5 hours (it will be a very pretty run though).
If you cross to Fishguard, follow the signs for the A40 and head east until you reach St. Clears where the A40 becomes a dual carriageway, then see below.
If you cross to Pembroke, follow the signs for the A477 until you reach St. Clears where you turn right onto the A40 dual carriageway.
A mile after joining the dual carriageway, you will see a turning right signed for Llansteffan. We do not recommend this route, as this area is a mass of tiny un-signposted lanes and you might never be seen again!
Continue on the dual carriageway for a further 8 miles then turn sharp left half a mile after the petrol station, just before the bridge.
See a map of Carmarthen here then "After Carmarthen" below.
When you reach Carmarthen, follow the signs "St Clears A40" briefly
(NOT "Llandeilo A40" which is the opposite direction).
Take the next turning left after B & Q.
After you leave the bottom of the Carmarthen map, stay on the B4312 for 7 miles (about 11 Km) until you enter the village of Llansteffan. As you drop down a slight hill, follow the road round to the left, but DO NOT TURN LEFT down to the beach. Follow the road up through the main street of the village until you reach the square, where you will see the two pubs on your right and the church ahead of you. Turn left here, so that the church is on your right, then almost immediately left again. The cottage is on the corner on your left.
There is a railway station in Carmarthen with regular services from London Paddington via
Bristol Parkway and Cardiff Central. You might have to change trains at Swansea.
There are also services from Manchester Piccadilly to Milford Haven which stop in Carmarthen.
Once in Carmarthen, there is a taxi firm next to the station, or walk across the suspension bridge to the bus station and look for service 227 - Timetable Here
National Express Coaches also run to Carmarthen, but you will probably have to change in Swansea.