Martin Butler Presenting "Secrets of North Head Part 2" at the Club's Dinner Meeting
Martin Butler was the guest speaker at the club’s last dinner meeting. This is the second occasion that Martin has presented to the club and provided an update on his investigation into the “secrets” of North Head. From earlier investigations based on historical documents and eye witness accounts Martin employed the services of Scan Tec Geophysical Consultants and using ground penetrating radar has confirmed the myriad of closed off tunnels and structures some of which may contain old ammunition.
Martin has written a book “Tunnel Vision” based on his 20 year investigation and his concern for the possible consequences of the old munitions exploding.

All in all another intriguing and possibly concerning presentation.