Just spent a very interesting few hours down the Viet Cong tunnels near HCMC. Jacob rushed down, much to the consternation of his parents – there are over 17km of tunnels to explore. I would not have been able to fit down the hole. Instead we shouted down the exit point and after a very long 3 minutes he arrived at the end. Apparnetly there were bats down there. We went down the tourist tunnel built for the bigger sized falang, Istill managed to scrape my back.