Bright lights with incredible agility seen from mailbox at Area 51 on UFO highway in Nevada for several hourse.We were on a tour of the UFO highway in Nevada during the Columbus day long weekend where we witnessed highly maneouverable lights in the sky. After visiting the town of Rachel, we proceeded to the famous mailbox, I forget which farm it is at. We were at least hoping to enjoy a desert sunset and evening and perhaps were hoping to maybe see something unusual. Between 2100 and 2200 local time we witnessed an amazing display of agility by a light maneouvering over the first ridge between the mailbox and Groom Lake. It was about as bright as the planet Venus is in the night sky. It would shoot up above the peaks and then flutter down like a feather. We were impressed when it then starting moving extremely rapidly and stopping from one end of the ridge to the other. It appeared to be covering a few miles in a matter of seconds. What was striking was the agility of this object. Perhaps moving several hundreds of miles per hour and then reversing direction in literally the blink of an eye. The craft would disappear behind the ridge often, for several minutes at a time and then reappear. Upon the last disappearance 3 of these objects appeared, doing the same maneouvers but not in formation. There were 5 witnesses to this incident. All of us tourists to the area. There was no noise associated with this sighting. No turbine, afterburner sounds etc... Myself - I am an officer in the Canadian Forces.My Wife - She is a nurse in Calgary Alberta A small boy age 10 to 12 - from Florida.His father age 50 (or so) - retired Cop from Florida His Grandfather age 70 (or so) - from Las Vegas. I have seen fighter aircraft perform in day and night conditions. No fighter can move like that. The movements were extremely quick. Possibly some kind of model airplane, or unmanned aerial vehicle, if not then who knows...??