Stourport to Tenby (Pembrokeshire) - good halfway stop?

[MotherWombat]

Travelling from Stourport to Amroth Castle next week, about 3 1/2hr trip, and looking for a good place to stop en route to give 2 little boys a good run around. Preferably somewhere between Brecon and Llandello.

Does anyone know a good place to stop? Ideally looking for somewhere with playground and good cafe to satisfy everyone's needs....

What about Brynich Play Barn near Brecon ? We have used this a few times. It's an indoor play barn - so ideal if it's raining. There's a cafe where you can sit and watch the children play and there is a seperate restaurant as well.

Brilliant thanks - will google and bookmark this spot in case of rainy weather (summer in the UK, yes rain is likely )

Do you or anyone else have any suggestions for outdoorsy type things, big park with good playground near cafe etc?