We go here and have been for the end of season motocrosshere.Hendre mynac is about a good half hour walk to Barmouth town .Dyffryn is a ten minute drive to Barmouth, cracking beach on this site.
Silver Birches in Betws Garmon is a fabulous site. Adults only, only 13 pitches and spider free toilets. However, the nearest pub is a couple of miles away. But definately worth a visit.
Trawsdir Touring Caravans & Camping excellent facilities-heating and music in the toilets and definately no spiders,walking distance to a local pub with drinks and food,great beach access opposite side of the road
Here you go, all sites in Snowdonia, now you just need to pick your requirements, e.g. tents, pets allowed, toilets etc. and this will narrow down your search results