The Great British Treasure Hunt is an interactive collecting experience built around an official 2026 UK £5 coin. Inspired by Sir Isaac Newton, Master of the Mint and one of the greatest scientific minds in British history, this release turns a commemorative coin into the starting point of a nationwide puzzle-led challenge.
The hunt begins with the coin itself. Hidden within the design and its presentation are clues, symbols and coded references that unlock the first stage of the journey. Solving these leads participants through a series of connected puzzles and challenges, each revealing further information and guiding them deeper into the hunt. The experience blends observation, logic and problem solving, with progress dependent on interpreting physical and digital clues correctly.
As the hunt unfolds, participants compete to advance through successive stages, with only a limited number progressing to the final phase. Those who reach the end will be in with a chance of claiming the ultimate prize: solid gold. The coin remains a permanent keepsake, while also acting as the key that enables access to the wider experience.
Struck to a Brilliant Uncirculated standard, this official UK £5 coin features the coinage portrait of His Majesty King Charles III on the obverse and a specially created reverse design by Christian Davies and Matt Dent. Issued as part of The Royal Mint’s 2026 UK coin range, it offers collectors and puzzle enthusiasts the opportunity to take part in a one-of-a-kind interactive coin release.
