Where to go with a teenager and almost teenager in Wales?

[hugoagogo]

We are planning to go away in the autumn half term with ds (15) and dd (12), maybe to Wales because none of us have been for years.

Question is where exactly to go? Preferably by the sea...

Pembrokeshire. Loads to do there!

Tenby is fab. Lovely beaches, hotels, restaurants. Also nearby you have Bluestone, Oakwood, Folly Farm. North Wales v beautiful too, lots of castles and gorgeous coastline, quirky little towns. Or cardiff (where I live) for a bigger quirky town! Have fun whatever you decide!

Swansea/Gower.

Loads to do here, plus, as pp said, Oakwood isn't very far either.