What the fair is
The Ould Lammas Fair at Ballycastle, on the north Antrim coast, is commonly described as Ireland's oldest surviving fair. It falls on the last Monday and Tuesday of August — check locally before you travel, as arrangements can shift. Hundreds of stalls fill the town, horse trading still happens in the streets as it has for generations, and the whole event sits against the Glens of Antrim and a coastline that feels properly elemental in late summer.
Lammas is the old harvest festival marking the turn from high summer, and fairs tied to it once existed across Ireland and Scotland. Most have faded. Ballycastle's endured — and the reason it holds a particular place in the imagination, beyond the horses and the crowds, is two foods that exist almost nowhere else in quite this form.
Dulse: seaweed as everyday snack
Dulse is a dark purple seaweed gathered from the rocks along the north Antrim coast. After harvesting, it is dried in the sea wind until it reaches a leathery, chewy consistency, then sold in paper bags from the fair's stalls. No seasoning, no treatment beyond the salt and iodine already in the plant itself.
To eat it is to get an immediate, concentrated hit of the sea — intensely savoury, slightly mineral, with a texture somewhere between dried fruit and chewing tobacco. It is an acquired taste, and many people acquire it at the fair and nowhere else. Dulse has been eaten along this coastline for a very long time; the fair gives it a fixed, annual, public moment.
Dried dulse is increasingly stocked by health food shops year-round, but the Ballycastle version — bought from a stall, eaten in the open air on the coast, dried by the sea wind rather than by machine — has a context that changes how it feels to eat it.
Yellowman: the toffee sold in slabs
Yellowman is harder to find outside the fair than dulse is. It is a honeycomb toffee — bright yellow, brittle, full of air bubbles — made in large slabs that stallholders break apart with a hammer before weighing out your share. The result is irregular, sharp-edged shards with a crunch that softens quickly into something sticky and intensely sweet.
It sits at the brittle end of the honeycomb spectrum, far from the softer versions found inside chocolate bars. Nothing about it is subtle. Part of its appeal is theatrical: watching a slab get smashed apart is a small, satisfying ritual that modern food retail has largely abandoned. Yellowman is rarely made or sold commercially outside the fair season, making it one of the few genuinely fair-specific foods left in these islands.
Yellowman and dulse form an unlikely pairing — the most savoury thing you can eat alongside the sweetest, sold side by side. The fair's traditional song pairs them explicitly, cementing their association with Ballycastle in the popular memory of Ulster. The song is easy enough to find; knowing it adds something to standing at a stall choosing between the two.
The setting and how to approach it
Ballycastle is a small market town at the mouth of Glenshesk, the northernmost of the nine Glens of Antrim. The coastline looks out towards Rathlin Island and, on a clear day, across to the Scottish coast. The fair colonises the town centre, and the combination of street trading, livestock and the sea close by gives it a character that is difficult to manufacture.
It draws large crowds, particularly on the Tuesday. If you are coming for the food stalls rather than the horses, the Monday is generally quieter. Either way, arrive prepared: the fair is loud, busy, and smells of toffee and seaweed in more or less equal measure.
For anyone already exploring the County Antrim coast — the causeway country, the glens, the clifftop roads — the fair fits naturally into a longer trip. The food is worth the detour not because dulse and yellowman are the finest things you will eat in Ireland, but because they are a direct, unbroken line to how this stretch of coastline has fed and celebrated itself for centuries. See also our County Antrim heritage article if published.
