Hidden away in a forest near the village of Glenmavis are a series of anti-aircraft defences built in the latter days of World War 2 as part of the Clyde Anti-Aircraft Defences, and which are now listed as a monument of national importance.
The complex consists of a series of ammunition storage bunkers, mosts with their original woodwork in place which was designed to store the shells used for the anti-aircraft guns, as well as concrete gun emplacements, a command post, a generator room and a computing room.
Even though the main Command Post is now flooded the majority of the complex can be visited without difficulty.
Please note that there are some other bunkers and containers in these woodlands which appear to be for rearing pheasants. Please leave these undisturbed.
The cache container is a medium sized box containing logbook, pen and other items.
The cache is not contained within any of the structures.