Yr Efail Argoed is a cottage in Llanddowror. It's a small village off the A477, about ten minutes from St Clears. You're in the countryside here. The place looks out over fields.
It sleeps four. There are three bedrooms and one bathroom. It's graded 4 Star, so it's comfortable and well-equipped. The garden is enclosed.
There's a local pub within walking distance. They do food. You're about a twenty minute drive from the coast. Pendine Sands is one way, with that long beach. Laugharne is the other, which is where Dylan Thomas lived. You can visit his boathouse there.
For a bigger day out, the Pembrokeshire Coast National Park is about half an hour's drive west. Tenby and Saundersfoot are in that direction too. To the east, you've got the National Trust places like Colby Lodge.
Facilities: there's parking, WiFi, a washing machine, and a cot and highchair if you need them. Bedding and towels are included. You can bring one well-behaved dog.