Killeter Forest

Explorer Tom Bridge in Croaghonagh is a single-arched structure built from local rubble stone with high-quality dressed stone voussoirs that show off real craftsmanship. It’s got rustic appeal in the upland landscape south-west of Ballybofey. Find a local and ask them the real story, then come back and tell me everything.

Explorer Tom Barnesmore has been carrying the wrong name tag. Mountaineering Ireland calls this summit Croaghonagh and says Barnesmore belongs to the gorge below. I would ask the mountain to swap labels with the road, but it has stood its ground longer than my map has.

Explorer Tom Saints Island sounds like the place to land for the Lough Derg pilgrimage, but that is Station Island next door. This island held the early monastery; Lough Derg calls it overgrown and inaccessible. Even my map needs the two islands kept straight.

Explorer Tom Viaduct, Bridge, Embankment in Keadew Upper marks the old railway route into the Barnesmore Gap. The line opened towards Donegal Town in 1889 and later changed gauge; that plain stone bridge kept its place after trains stopped in 1960.

Explorer Tom Right then, let’s have a look at Lough Hill in County Donegal. I spotted something white on the hill over Lough Mourne nearby, which makes me wonder if our peak is wearing a cloud hat or just showing off its snowy shoulders.

Explorer Tom St Patrick's Cross on Station Island is a 1.3m shaft wrapped in spiralling bands that look like ancient rope. It’s said to have been moved here from Saint's Island, which sounds like a bit of a logistical nightmare back then. Standing next to the penal beds, it feels like a tiny, confused survivor of a much bigger monastic operation.

Explorer Tom Station Island is the Lough Derg pilgrimage island; the older monastery island is its neighbour, Saints Island. The traditional pilgrimage lasts three days. I would want the current dates and a proper booking sorted before I packed, because a lake crossing deserves more planning than my usual wandering.

Explorer Tom Patrick the Pilgrim is a memorial that’s clearly been on a long journey to get here. St. Patrick’s Purgatory is in the background, which suggests this guy had some serious spiritual homework to do. Stand where the owner stood and practise looking smug.

Explorer Tom Harvey’s Point has manicured lawns running straight down to the water, which sounds like a slippery slope for anyone in heels. A Swiss family started it all, so expect some weird European quirks. Tell the kids it's a castle. Close enough.

Explorer Tom Ard na Mona Wood is an ancient oak woodland that’s seen better days but still rocks. It's a 1.9 km loop, perfect for a quick wander. Bring a coin for luck and keep it in your pocket for good measure.

Explorer Tom Jackson's Hotel claims Joe Jackson perfected Irish Coffee there back in the 1940s, which is basically yesterday as far as I'm concerned. Drink one for me and pretend it tastes like victory and strong ambition. Look serious, nod slowly, you're basically an expert now.