Thanks for everyone's comments we understand it will be hot when you have two kids you can only travel in the summer time so you travel when you can if you want to see anything. And we always leave at midnight the kids sleep all night this is how you can get more hours on the road. We take turns driving so this helps. We plan on trying to get some water time in like some of you have suggested. Lake Powell the narrows at Zion a pool at Bryce and in Moab we might try rafting. Any other suggestions from anyone would be great.