I had a good bounce below this morning ( the only way I was going to get the GF to go underground and actually enjoy the experience!).
I must say I'm pretty impressed with the setup, its proving to be popular so far it seems as well, with booking essential.
The way I see it its a non-destructive use of the space, its encouraging visitors to the area and if it engages the curiosity of just a few to think more about the environment in which its set that can only be a good thing.
Well done Miles.
Roly.