This place is called Drift. It's a semi-detached house in Dale village. You get good views over the fields towards the castle.
It sleeps five. Three bedrooms, one bathroom. It's got a 4 Star grading. There's an open fire and a south-facing patio at the back. The house is all on one level, so the entrances are wheelchair friendly.
The beach is about a five minute walk. The local pub is even closer, maybe 500 yards. They do good food and local ales. West Dale beach is a walk away, and Marloes Sands is a short drive.
You're right on the coast path here. For boat trips to Skomer Island to see the puffins, you go from Martin's Haven. That's about a ten minute drive.
It's about a half hour drive into Haverfordwest for big supermarkets. Tenby and St Davids are both within a 30 minute drive too.
The facilities are pretty standard: washing machine, dishwasher, WiFi, TV. Bedding and towels are included. One well-behaved dog is welcome.
For planning, these sites are useful: Pembrokeshire Coast National Park and Wildlife Trust of South and West Wales.