For family summer holiday with DH and DS11 & DS9, I am wondering whether to stay around Bangor,with train service to Belfast or around Newcastle. We will be arriving via ferry and drive up from Dublin or Rosslare.We want to see Giant's Causeway/Carrick-a-rede rope bridge but nothing else is a 'must-see' - am currently researching kid-friendly attractions. Because we have the long return drive to the ferry port, we don't want to stay around the Causeway area but want somewhere not quite so far from the ports.Any recommendations?