Honestly there’s very little on the road between Belfast and Dublin but if you’re wanting to do some sightseeing the north Antrim coast is lovely. You can get a train into Coleraine and then there are day buses that ramble around the Causeway etc. There are a number of little seaside towns up there with accommodation - somewhere like Ballycastle is very nice.
But PM me with what you’re looking for, if you want, and I’ll have a think about it
But PM me with what you’re looking for, if you want, and I’ll have a think about it