The lively market town and port of BALLYCASTLE sits at the mouth of the two northernmost Antrim Glens, Glenshesk and Glentaisie, and makes a pleasant base for exploring the Causeway Coast or the Glens themselves. The best time to visit Ballycastle is at the time of the Ould Lammas Fair, Ireland’s oldest fair, dating from 1606. Held on the last Monday and Tuesday in August, it features sheep and pony sales. Stallholders do a roaring trade in dulse, an edible seaweed, and yellowman, a tooth-breaking yellow toffee that’s so hard it needs a hammer to break it up.