Set on the South Wales coast, Merthyr Mawr Warren National Nature Reserve is home to the highest dune in Wales, known as the Big Dipper.

The dune system here is like no other in Wales, partly due to the huge area it covers – it extends to 840 acres (the size of 340 international rugby pitches!).

Merthyr Mawr is a haven for wildlife - sand has settled on top of the ancient limestone cliffs creating a special habitat for insects, fungi and plants.

There are also grasslands, saltmarsh, beach and woods within the reserve.

Flints from the Stone Age, burial mounds and pottery from the Bronze Age, hearths from the Iron Age, and Roman tiles have all been discovered here.

Source: https://naturalresources.wales/days-out/places-to-visit/south-east-wales/merthyr-mawr-nnr/?lang=en