I had never been to the Grand Canyon and it was ah.maz.ing!!!
First we drove to Las Vegas, then the next day we were flown to a great little ranch in Arizona where we shot guns and rode horses (so much fun!), then the next day we rode on a helicoptor to the northeast end of the Grand Canyon (only time I've ridden on a helicoptor and would do it again in a heartbeat!), and then for 3 days we rafted southwest down the Colorado River ending in Lake Meade.
It was the adventure of a lifetime!