If you do visit Wales, My advice would be to head to our coastline, especially along the Tenby Saundersfoot coast, I have travelled all over Europe from a young age and nothing compares to those beaches when the sun is shining, a walkers paradise, Tenby is about 1 hour 30 minutes drive from Merthyr my home town.
https://www.youtube.com/watch?v=Q462lJv7y90