I visited the caves a couple of years ago with Karen and Dafydd. The caves are well sign posted from the A48 and have a large car park, shop/café, toilets etc. The visitor's guide states that the caves have been in use since the Bronze Age. The self-guide tour is an easy walk and we were able to take the push chair all the way around – about a 45 minute walk.
All in all we spent a good afternoon here.
A visit I would recommend.