From the trip dated 24th March 2007. Ashish fights the vines and other flora to descend into the depression holding the first ventilation shaft of the tunnel 25C.
During our search, we had passed this place three times within 10 meters without noticing it due to the excellent natural camouflage. We spent close to two hours searching the hilltop; we asked various people about a well-like structure and got a variety of creative replies that did not quite lead to our quest.
Finally, we met a person who knew exactly what we were looking for and guided us to the place with the greatest of ease.
Note the Anaconda sized flexible water pipe lying abandoned on the ground.