Looking Hopeless, Until...
Although these guys were treasure hunters, who were also scientists, geo-radar specialists, and doctors, they did not have the funding that it would take to bore into these tunnel systems. Second to that, there would have been no possible way to get in without blasting a hole into the ground big enough to fit a man through, but small enough to avoid collapsing the cave. The men were able to do a little research on the history of the tunnels, and what they did find motivated them to find a sponsor...
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