Breacon Beacons Nat'l Park
Bannau Brycheiniog (Brecon Beacons) National Park encompasses a large area of wilderness along with towns and villages. The national park offers a varied landscape to explore with kids, from walks across the moorlands ridges to waterfalls nestled in the woodlands.
The Mountain Centre (Visitor's Centre) has a spectacular view of Pen y Fan, the highest mountain in South Wales. Stop in the Brecon Beacons National Park office in Abergavenny to get more information on walks and hiking in the park, and family-friendly guided walks and children's events.
Pony trekking is available from Neuadd Trekking Centre (near Abergavenny) or Wern Riding Centre (near Crickhowell).
Brecon Mountain Railway (near Merthyr Tydfil) - Take an hour steam train ride along a large lake, with glorious views of Pen y Fan in the distance. Near the station is a large playground and picnic tables, and a restaurant.
Canal boating - The Monmouthshire and Brecon Canal ( 'Mon' and 'Brec' Canal) meanders through the National Park, offering a peaceful view of the landscape. Take a day cruise on a narrow boat on the canal (locks included, of course) - a relaxing way to spend your day. Pick up the boat from Brecon.
White Castle (near Abergavenny) - Moat encircling the castle, and kids can climb up the tower of the 13th century gatehouse for a fine view.
Dan-yr-ogof Showcaves - This is just a spectacular set of huge caves,with stunning stalagmites and stalactites. There is also the Dinosaur Park, life size recreations of dinosaurs set outdoors, and replica of an Iron Age Farm. Next door, visit the Shire Horse Centre, where you see shire horses, sheep dogs, and other farm animals.