In the truest sense of the word this was an alien landscape: well below sea level, a landscape of green and yellow hues and weird shapes, with day time temperatures reaching 50°C, and geothermal activity rife throughout the area, my rudimentary understanding of geology was struggling to interpret what was going on.  If NASA ever send a mission to Venus, this is where I suggest they test their equipment, as there was very little left to suggest we were actually still on the little ball of green and blue we call earth...