What? A full day of activities to take in the sights of mountains, dungeons and caves

Where? Llandeilo

Cadw site to see: Castell Carreg Cennen

Most ‘Instagrammable’ spot: the tunnel beneath the castle. As the sun leaks through its weathered brickwork, the tunnel boasts dramatic flashes of light throughout the day — an ideal location to ‘snap’ a mysterious shot for your grid.

There are few castles in Wales which boast a more spectacular location than Castell Carreg Cennen. This stout, weather-beaten ruin crowns a sheer limestone crag overlooking the remote Black Mountain in the western corner of Bannau Brycheiniog (Brecon Beacons) National Park.

Following a short, steep walk up to the stronghold from the Carreg Cennen car-park, take in breath-taking views across acres of untouched countryside and if you’re brave enough, locate the site’s mysterious underground tunnel to discover a rocky cave — formerly used as a secret store-room and dungeon!

Once you’ve taken the perfect cliff-side Instagram ‘snap’ and uncovered the site’s dramatic history, wander down the nearby path into the glorious wooded valley to embark upon a two-hour circular walk.

Using the red castle marker signs as a guide, cross the River Cennen and head to the top of the Black Mountain to discover even more picture-perfect views.

After passing through peaceful open moorland, the walking route will lead you back to where you started — at the drawbridge of Carreg Cennen.

Here, stop for a much-needed drink or snack at the Castle café, before jumping in the car to reach the nearby Dolaucothi Goldmines. Here, you can pan for gold at the UK’s only remaining Roman gold mine, complete with the chance to take an underground guided tour through two thousand years of Welsh gold mining history — a great post-walk option if you’ve got the kids in tow.