St Patrick's Roman Catholic Church, Downpatrick

The cathedral-like interior catches you off guard the moment you step through the doors - all soaring stone and coloured glass, far grander than the modest street frontage suggests. St Patrick's Roman Catholic Church sits right in Downpatrick town centre, and it's worth ducking in even if you're just passing through on the way to the Mourne Mountains.

This isn't a quick five-minute tick-box job. The craftsmanship deserves proper attention - the altar work is genuinely impressive, and the light through the stained glass transforms the space depending on what time you visit. History buffs will appreciate that Downpatrick itself is absolutely swimming in St Patrick connections, so this building sits within something larger and more significant than just the four walls.

It's free to enter, though you'll want to check opening hours before making a special trip since churches can be unpredictable about access. Budget half an hour if you're genuinely interested in the architecture and decoration. Kids will either find it fascinating or get restless - depends entirely on your crew.

If you're based at one of the nearby caravan parks - Delamont is genuinely excellent, by the way - this is a dead easy stop while you're exploring Downpatrick itself. Combine it with a walk around the town's medieval sites and you've got a proper morning sorted. It's not a destination in itself, but it's absolutely worth the diversion if you're in the area.