I'll be in Belfast for two nights at the end of May. I know, I know- not nearly enough time :) That being said, I'd like to spend one day exploring Belfast and will hopefully spend the other day on a day trip to Giants Causeway. Are there regular bus services to the Causeway? Or do you recommend any particular tour company? I am a college student on a budget, but am willing to spend a little extra cash if its needed to see something breathtakingly beautiful! Thanks for your help.