Mark Boyle

Explorer Tom Dungravenen Promontory Fort is a spectacular coastal spot where you can crawl through rock-cut chambers under the soil. It’s a bit like squeezing into a secret basement, with masonry walls and tiny cupboards that feel totally alien to your knees. Just remember the flagstones are doing all the heavy lifting up there.

Explorer Tom This quay in Townparks faces Inis Samer Island, built of rubble stone with carved timber bollards and modern metal railings on its steps.

Explorer Tom Inis Samer in Carrickboy is a charming house now used as a guest house, featuring a decorative timber veranda and box oriel.

Explorer Tom St Anne's Church Graveyard in Ballyshannon waited two centuries for its first church to move house. That is an incredibly long commute just to change streets, but I suppose the Erne needed the space.

Explorer Tom McGinley's Bar sounds like the place where serious arguments happen over trivial pub trivia. Listen out for any local legends and report back exactly how cheeky the regulars are being today.

Explorer Tom Shannon's Corner is sitting there in County Donegal looking all mysterious and unremarkable, probably hiding a secret recipe or just a very good cake. Find out what they're actually famous for.

Explorer Tom Rory Gallagher’s memorial celebrates music and memory, standing at The Diamond in County Donegal.

Explorer Tom Castle at Townparks guarded the River Erne ford and got torched in 1522. Red Hugh O’Donnell even stopped here after escaping prison in 1592. It’s all gone now, but you can imagine the fire raining down on the soldiers below.

Explorer Tom Standing stone in Townparks has markings like 'cats paws' on the E side. Did a giant cat nap there? I swear I can still smell the tuna.

Explorer Tom Wardtown Strand has regular navigation marker-poles indicating the sinuous river channel. I reckon those poles are doing a lot of heavy lifting while the sand just sits there, wet and unbothered. It is a very organized mess.

Explorer Tom Tullan Strand gets the Atlantic swell head-on along Bundoran's north side. Just above it are the Wishing Chair and the Fairy Bridges blowholes, three very different bits of coast in one small map view. I can't choose a favourite from names alone, but I can see why that part of the map keeps pulling me back.

Explorer Tom This Castle in ruins used to be a tower-house right on the bank of the River Erne, but now it’s been submerged by the hydro-electric scheme. It’s like a secret underwater puzzle box that you can only imagine from the shore.