The cache itself is in a 3d printed container where a maze must be solved to open it.
More information about the cache, and technology it uses, is available at the first stage.
Please park considerately when attempting this cache, parking at the very end of High Firs Road will obstruct driveways and garages, so it may be necessary to park a few houses away.
Beware of muggles at both stages. At stage one, you may be able to solve the puzzle whilst out of sight depending on your device. Stage two is a quick and easy find to allow the cache to be found between dog walking muggles. This cache will be hardest at peak dog walking times, i.e. just before and just after work.
Many thanks to Test Valley Borough Council for permission to place this cache.
Congratulations to Boomshanka for the FTF when this cache was harder. Thanks to Boomshanka and Seeking Salters for feedback which persuaded me to turn the difficulty down a few notches.