He makes light of the experience but he is a close friend and I know it still haunts him and he was very lucky too. He has since done the walk again with a guide. It turns out that the sign had been moved (by groundsmen of someone) and the trail he followed was not the footpath at all. The real route is much clearer.
Yes, he is lucky to be alive. Scary. Just shows have close society can be to a complete breakdown. We depend on electricity for almost everything. Cut the power feed, and we'd go crazy pretty quickly. Few of us could survive in the jungle, urban or otherwise.