Especially sucky if you had mule rental, heli-tour or other drama scheduled. Great dramatic view otherwize if you already know what it looks like on a clear day. South Rim is spectacular but a bit overcrowded, I imagine Z knows all the out of the way treasures. I have done Skywalk and riverside camping at Peach Springs/ Diamond Creek, Toroweep and North Rim but still haven't had pleasure of visiting Havasu Falls. Nice country wherever one ends up.