We left Ashgabat around lunchtime in a convoy of three 4WD cars, packed with tents, sleeping bags, food, water, and, of course, many bottles of Vodka. We were heading to the site of a Soviet mining accident in 1971 when Russian geologists were drilling for oil. They found gas instead, and the drilling rig collapsed into a crater. The gas was expected to burn out within days, yet 40 years later it is still burning brightly.