We are having a very small wedding in May (20 people) outside Caernarfon. We haven't booked anywhere for the ceremony yet, we are looking for somewhere that resembles a small barn (we are not religious) but not opposed to a registry office if they dont look too "office" like, some look pretty clinical. We just want something small / rustic and cheap too if possible, not too far from Caernarfon. Any ideas? Thank you in advance