The county of Pembrokeshire has over 100 beaches to choose from, most of which lie within the Pembrokeshire Coast National Park. The most popular (and the easiest to get to) are Tenby and Saundersfoot in the south-east of the county. Both are accessible by train (although a bit of a walk for Saundersfoot). On the south-western tip, the geology is limestone, and these beaches have some spectacular caves and arches. The western coast borders St Brides Bay, and includes the surf beaches of Newgale and Broad Haven. Pembrokeshire's northern coast is indented with smaller, sandy beaches and remote secluded coves. In summer, boat trips operate to the offshore islands of Caldey, Skomer and Ramsey.
Inland, Pembrokeshire has good roads (far better than nearby Swansea's Gower Peninsula) and is also good walking country. The highest point is Foel Cwmcerwyn in the Prescelly Hills, at 1753 feet. Castles worth visiting can be found at Carew, Manorbier and Pembroke.
After a hard day at the beach, the Cleddau rivers are worth exploring, and are ideal for leisurely watersports. If you've never been there, then Cresswell or Lawrenny Quays are the perfect location for an evening's drinking, with outdoor seating overlooking the river.