Apollo 17 commander Eugene A. Cernan waves to NASA Tours bus passengers from Lunar Rover trainer during extravehicular activity [EVA] training at the Spaceport. Cernan was enroute to the Center's Lunar Rover training area as tour buses were departing the Flight Crew Training Building after passengers had viewed the trainers from a balcony. The Flight Crew Training Building is a regular stop on the NASA Tours route. Cernan, command module pilot is scheduled to liftoff sometime in December 1972.