Awesome thats one I haven't managed to doLagoon and Beaufoy caves all so know as Tower Hamlets ARP tunnel, lies a small network of tunnels deep under ground. With all the main entrance now sealed these are still in quite nice condition. Once in these tunnels are in fantastic condition. Nasty little abandoned restaurant at the end of it.
Have been after this one for a while, and stars finally aligned. Explored with @Stimpakman and a couple of other mates . Phone pics as per....