It’s 1899. You’re a detective constable, and a professor of mathematics has vanished without a trace. The only clue: a blood-stained briefcase. Your job is to solve the case.
This self-guided murder mystery walks you through central Dublin’s historical streets, entirely outdoors and entirely at your own pace. You collect a physical envelope at the pick-up point near Trinity College - it has everything you need to run the investigation. No app to download, no guide to wait for, and no fixed start time. Head out whenever you’re ready and finish when you’ve cracked it.
The route begins outside Trinity College and ends at the Irish Houses of Parliament, covering around 2 km. As you work through the clues, you’ll pass through Temple Bar and get genuinely drawn into the landmarks and surroundings - so you end up knowing the city better by the end, almost without realising it. It takes one to two hours to complete.
It’s a great fit for friends, couples, or families who want something a bit more active than a standard walk around town. All content is in English only.
Meeting point: Collect your mystery at Green Tourist Office (Opposite Trinity College Gate), 37 College Green, Dublin D02 P710. Open Monday to Sunday, 10am to 10pm.
Pick up your envelope and head straight to the starting point on College Green. The Green Tourist Office sits directly opposite the main gate of Trinity College, so you can’t miss it. If you’re arriving by bus or LUAS, the College Green stop drops you practically at the door.
Temple Bar is one of your stops, and it’ll be tempting to linger. That’s fine - the mystery has no clock running. But if you go on a weekend afternoon, the streets around Temple Bar get genuinely busy, which can make reading clues and talking things through a bit tricky. A weekday morning or early evening is noticeably quieter.
Bring a pen. The envelope contains physical materials, and you’ll be working things out on paper as you go. It sounds obvious, but it’s easy to forget when you’re heading out the door.
The route between Trinity College and the Irish Houses of Parliament covers about 2 km. Most people complete it in one to two hours, but there’s no rush. You can pause at any point, duck into a coffee shop, and pick it back up when you’re ready.
If you’re doing it as a group, appoint one person to hold the envelope and one to navigate. Splitting those roles tends to stop everyone from crowding around the same sheet of paper at once, and makes the whole thing feel more like an actual investigation.