Magnificent! A wonderful follow-up, having spent a day walking various parts of the south rim on Saturday and then thoroughly enjoying the view from the helicopter and the dialogue with our pilot, Nate, on Sunday.
A magical experience seeing the Grand Canyon's history in IMAX! The story of Powell's expedition and the hardship he and his team endured made the experience even more exhilarating. I would highly recommend this to all who intend spending time at the Grand Canyon.