Other experience

Portsmouth Self-Guided Mystery: Nelson's Stolen Diamonds

4.9 / 5

16 reviews

Activity provider: Mystery Guides

Portsmouth Self-Guided Mystery: Nelson's Stolen Diamonds

Activity provider: Mystery Guides
Likely to sell out
Likely to sell out

From US$ 16.68 per group up to 2

See if you have what it takes to catch the villain behind Portsmouth’s most legendary unsolved mystery during this self-guided outdoor escape room game, The Mystery of Nelson’s Stolen Diamonds.

About this activity

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Wheelchair accessible


  • Discover the historic streets and taverns of Old Portsmouth
  • Solve 18 interactive clues and puzzles in your quest for an elusive diamond thief
  • Soak up true local stories of Portsmouth's most notorious characters and places
Full description
Turn the historic streets of Portsmouth into an exciting outdoor escape room with The Mystery of Nelson's Stolen Diamonds. Walk around the city as you solve the clues, eliminate the suspects, and unmask the mysterious thief behind Portsmouth's most daring robbery. The story follows Horatio Nelson on his last day on dry land before joining his ship to fight in the Battle of Trafalgar when he stored a valuable diamond necklace in a chest in one of Portsmouth’s many taverns for safekeeping.

That night, the tavern was broken into and the necklace was stolen. It's up to you to hunt down the clues, eliminate suspects, and return to the scene of the crime to finally piece together the mystery and catch the elusive diamond thief. This experience combines a treasure hunt and a self-guided walking tour to create a unique way to see the key historical sights in the city. Visit the most atmospheric taverns and soak up true local stories of the city's most notorious characters and places.

  • 20% off food in The Bridge Tavern
  • 15% off food and drink in The Wellington Pub
  • 10% off food and drink at The Dolphin
  • 44-page color activity booklet
  • Local guide (guided tour only)
  • Food and drinks

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Meeting point

The Dolphin, 41 High St, Portsmouth PO1 2LU, UK.

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Important information

What to bring

  • Comfortable shoes

Know before you go

  • For the self-guided tour, you will collect a 44-page guided activity booklet containing all puzzles, clues, and maps from a local pub before starting the tour
  • For the guided tour, your local guide will add extra information and will be there to answer your questions and introduce the best of Portsmouth to you and your group
  • The total walking distance is around 3km
  • The duration of the interactive tour is around 2-3 hours
Customer reviews

Overall rating

4.9 /5

based on 16 reviews

Review summary

  • Value for money

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It was a bright sunny day in Old Portsmouth and we were doing the treasure trail with relatives visiting from Scotland. We’ve done treasure trails before, but this was their first. They absolutely loved it! So did we. Although they have visited us in Portsmouth many times, the trail took us places we hadn’t noticed before and entertained us with historical anecdotes along the way. The clues were excellent and we all enjoyed the challenges. All doable . We stopped into The SallyPort for reviving coffees / beers along the way - very jolly and with the benefit of three floors (4?) of military antiques and other interesting objects to look at. We spent about three hours overall, with the pit stop and antiques looksee included, all on flat pavements, I definitely recommend this outing.

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April 12, 2022

It was a dull February day and we wanted a family activity to do and get us out and about, this was perfect, we really enjoyed trekking about in our own time solving the clues we made the most of the pit stops, the staff were lovely and it helped us see what else there is available in the local area, we’re hoping there are a lot more of these to do in other locations!

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February 18, 2022

Thoroughly enjoyed our Old Portsmouth pub and History treasure hunt. It is great that the hunt takes you to look at little jewels of interest and gives you facts about the area in which we have lived, but not known. We were able to talk to a couple of residents who were very friendly. Standing outside the school reading about the history I suddenly became aware that it might be the wrong place to stand. We would thoroughly recommend the adventure with a couple of relaxed stops at the various pubs, alcohol not mandatory

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October 14, 2021

Product ID: 331786