How 18 Clues Works
You go to our Challenge Shop and purchase one or more of our 18 Clues Challenges. You can choose a Walking Challenge, which requires you to visit the location and find the clues in person, and/or a Virtual ('Armchair') Challenge, which you can complete online, anywhere you choose, using tools such as what3words, Google Maps and your preferred search engine. Solve all 18 clues correctly and you will be left with the correct solution to the Challenge, which you can then submit online to be entered into an amazing prize draw. Scroll down to see our current prize package.
A new pair of Challenges featuring a new location will be released each month. All clues, facts and solutions in the Walking and Virtual Challenge versions are different, so if you are able to visit the Challenge location you can complete both Challenge versions to double your chances of winning the prize. As you explore the location, be it physically or virtually, you will also learn loads of interesting facts.
Best of all, 18 Clues proudly supports animal and environmental charities in the UK and overseas. As our business grows, so does the number of charities we donate to each quarter.
Walking Challenge
Virtual Challenge
Current Prize Package
See below for details of our current prize package. To be entered into the prize draw, correct entries must be submitted by midnight, 31st August. The draw will take place within days of this date and the winner notified soon afterwards. Subsequent draws will take place quarterly. The next, exciting prize package will be announced in August, as this one draws to a close. Remember... you've got to Be In To Win!
1st Prize
£££
£1000 Cash!
Yes, that's a whopping £1000 paid into your account to do with as you please... tax free!
A £500 Apple Gift Card to put towards a new iPhone, iPad, Mac, or anything else Apple? Accessories, Apps, games, music, movies, and more. Your choice!
Plus...
£500 Apple Gift Card
Plus a...
£50 Gift Vouchers
5 x £10 18 Clues Discovery Challenge Gift Vouchers to redeem yourself, or gift to friends or family.
Yes, that's a whopping
Plus...
£50 Gift Vouchers
From 18 Clues Discovery Challenges, to redeem yourself or gift to family or friends.
Plus...
The Perfect Gift Anytime
Give the gift of adventure with an 18 Clues Gift Voucher!
Gift Vouchers start at £10 and you can choose to have them emailed to yourself to print out and present in person, or emailed directly to the recipient on a date that you pre-schedule.
A £10 gift Voucher will buy the lucky recipient one Walking Challenge activity to enjoy with friends or a Virtual Challenge to play at home, plus a 25% discount on a second Challenge.
If you choose to have the gift voucher emailed to yourself, you can buy Stylish Presentation Sleeves from our Challenge Shop for just £2, including postal charges. You then simply insert the voucher you have purchased and present to your friends or loved ones.
A GIFT FOR YOU... Buy a minimum of £30 worth of Gift Vouchers in one order and within 24 hours you'll receive a code enabling you to order a complimentary Challenge of your choice.
IMPORTANT: If you are buying a Challenge for others, always buy a gift voucher. Why? Whenever you purchase a Challenge through the Challenge Shop, a Unique Reference Number (URN) is generated that is specifically linked to you and your contact details, so only you will be able to request answers to clues or submit the final answer. If, however, you buy someone a gift voucher, they can choose whichever Challenge(s) they wish, and when they redeem their voucher they will be registered as a member in their own right.
To buy an 18 Clues gift voucher click the Gift Voucher image above, the Header at the top of the page, or here.
Latest Challenge Release
Cardiff is a compact city with a huge personality. First settled by Neolithic farmers around 6,000 years ago, it became a Roman fort, a medieval stronghold, and then the coal‑exporting engine of the industrial world. Its Victorian boom left many famous arcades, grand civic buildings, and a waterfront that later reinvented itself as a modern-day cultural hub. Today Cardiff is a lively city that feels effortlessly historic, modern, and full of surprises.
The Challenge... A rugby ball from Wales’ legendary victory over the mighty New Zealand All Blacks in the fiercely contested ‘Match of the Century’ at Cardiff Arms Park in 1905 has vanished. Can you track down the location of this priceless relic by uncovering and solving 18 clues hidden across Cardiff City Centre?
About this Challenge... For more information specific to this particular Challenge location, please see 'ABOUT THIS CHALLENGE', at the base of the specific Product Page in the Challenges Shop. Choose the Walking Challenge, the Virtual Challenge, or if you leve near the Challenge location or plan to visit Cambridge, buy both to double your experience, double your knowledge and double your chances of winning the prize package!
The Charity... 18 Clues proudly supports animal and environmental charities at home and abroad. Each time we add a new set of Challenges to our portfolio, we select an additional inspirational charity to donate to on a quarterly basis. In this instance we chose to add the All Creatures Great and Small animal sanctuary to our list of charities. Founded in 1992 by Vivienne Harris, All Creatures Great and Small rescues and cares for dogs, cats, small pets and farm animals across South Wales. It focuses on offering vulnerable animals rehabilitation and rehoming, plus lifelong refuge for those who are unable to be placed in homes.To find out more about this incredible charity, click on the grey 'Challenge Charity' box above right, or here.
To start exploring this or any of our previous Challenge locations, please click the button below to access the Challenge Shop: