Deganwy tends to be cheaper than Conwy, because it's not as well known, but it is opposite Conwy and on the way to Llandudno. Its more of a residential area, although it does cater to tourists. It isn't overly pretty or quaint, but neither is it scruffy. There's a marina, a nice pram-friendly walk along the shore and if you go further along there is also West Shore (on the way to Llandudno) which is a lovely beach area. It has a cafe and a little park, a car park or on-road parking, a little boating pond and then the beach itself which I don't think is very well-known to tourists (who would probably go to Llandudno beach instead). There aren't any arcades or suchlike, so it's quieter. The water is quite shallow and protected by the Great Orme, so doesn't always get as choppy as Llandudno beach which is on the other side of the headland.
I adore the place. Its only 1.5 hours from home so I do on occasion "pop" down there for the day to refresh my soul! The Great Orme is my spiritual home 😂 I just need to pretend there aren't any other tourists up there when I go!
Llandudno has all the typical seaside attractions, but it's not dirty and the beach is nice.
I could rave about the place, I love it so much.
(I've travelled the world, seen amazing sights and places, but Snowdonia is my favourite place ever. So I'm a bit biased 😉)