Crossing Devil's Bridge, Worm's Head, Gower Peninsula, Wales. There is a four-hour window of opportunity (two hours either side of low tide) to reach to furtherest point.

Crossing Devil's Bridge on Worm's Head, Gower, Wales © National Trust Can walk across at low tide, slippery though.

Oystermouth Castle, The Mumbles, Swansea, South Wales, UK

Oystermouth Castle is a Norman stone castle in Wales, overlooking Swansea Bay on the east side of the Gower Peninsula near the village of the Mumbles.

Llangennith Beach, Swansea, South Wales, UK - Getty Images

Llangennith Beach, Swansea, South Wales, UK - inspiration for Draco and Hermione's honeymoon location.