Hi
We stopped at Penrhos cc site at Easter about 2 years ago. Lovely site, smaller than some of the other cc sites we have stopped on. Usual cc standards. Anglesey has some lovely beeches, Beumaris castle and you can also go to Ireland for the day from Holyhead on the fast ferry. We went and spent the day in Dublin. You can get to a number of areas from Anglesey, including Snowdonia, Caernarfon, Conway etc.
Beware of the speed limits on the roads, especially from Chester, Queensferry towards the coast. The coast road is known for its speed cameras. If you are travelling on a bank holiday, be prepared for traffic jams around Conway. We were caught on Good Friday.
We would go back. Annette