Thanks!
I am aware of the driving times, I use them only as a minimum indicators, usually it takes 1.5 times longer including comfort breaks and sightseeing.

Quote Originally Posted by AZBuck View Post
Your two children are in for a treat. A couple of hints: First, be sure to check in at each park entrance, ranger station, or visitor center and get them the age appropriate Junior Ranger material. there are also similar programs at some state parks.
Thanks, as it is a family holiday we all need to have a great time!! Will check out the ranger programmes, pass was on the to buy list already :-). Have checked but can not buy them online from outside US, Canada. Do you know of any good hikes that are a must do and doable with children in Yosemite, Zion, Bryce and Grand Canyon North Rim?

We were considering Lake Mead to as well but decided that the glitter of Vegas and the Shark Reef in Mandalay Bay would be good options as well and then stay at Lake Powell (Page), visit Antelope Canyon. Which one is the best, Upper or Lower Canyon? The question I have is, is it better to stay 2 days in Lake Powell or 2 days as a stop at either Lake Havasu or maybe Lake Mead?