Between the ears of a mule, yes, there is something out there….. The ONLY time that I (Guy) got VERY nervous was when the guide would have us stop and face the Canyon for his talks. I am not sure what he said. All I could see was the precipice between the ears of Stormin’ Norman who was truly as stubborn as a mule. Would not go backwards and seemed instinctively to know how nervous his rider got the closer to the edge he got. I am sure it was actually safe but…… it’s a long way down for any small misunderstanding.