Grand Canyon and Utah 2019

Sure do hope your A/C is working good!

Yep - WARM! Make sure you got electric and AC on board - or full hokup campgrounds.
We are in the Zion, Bryce, North Rim now. Came from Meteor Crater, South Rim, Vegas. 90+ every day - nights are better and can get cool (like 50s or 60s sometimes).
How many miles of travel are you planning/day? Maybe, you won't want to be driving some of roads in dark - I would not.
We are having a grand time by the way.

We are doing most of the driving the first day this will be the only day we drive in the dark we will leave home at midnight and drive for 16 hours.

Sorry - and what type/size rig are you and your helper driving?
If we do 300 miles in a day, it's enough.
Weather can play a big part of travel plans.

We are pulling a 28ft travel trailer and we do take turns driving

Be sure to search this Forum for the locations you plan to visit. Note that the average time spent at the Grand Canyon South Rim is less than 3 hours; probably much less unless you plan to do some hiking. Much more time could be spent at Yellowstone.

Here's the thing about Moab, it's gonna be hot when you are there, no way around that. The RV park you've chosen is kind of newer so there is not a whole lot of shade. My first recommendation for full-hookup RV parks would be Archview, but again, it is newer so the trees are not big shade trees. The RV park in Moab that has big shade trees is Slickrock Campground. But understand that Slickrock Campground is older, has gravel roads and spots and is probably not as nice as the newer RV parks. But, I've never had an issue staying there, prices are reasonable and there are lots of shaded spots.

One other recommendation while you're in Moab, consider doing the https://www.xtreme4x4tours.com/ 3 hour evening tour. It is not cheap but is by far, the best 4x4 tour you can do there. The guy goes up and over some amazing stuff on Hell's Revenge trail that no other tour does because they are unable to do it. It is completely safe and everyone, even my wife enjoyed it and she doesn't generally like that kind of stuff. This is coming from someone who goes to Moab to ATV ride advanced trails out there.

Here is a wild idea -- do you and your kids like to mountain bike? There is great boondocking and riding out on the North Rim of the Grand Canyon -- the Rainbow Rim trail is amazing. Plus you are at over 7000 feet -- nice and cool!

Just an idea.

First, while you're at Lake Powell, do not miss Antelope Canyon. There are at least two parts of the Canyon that is on Navajoland and the tribe members leads the tours. We like the first tour on the left side of the highway, DGS and I did that and it is much better than the one on the right side of the highway.

Second, we have taken our DGKs to the South Rim a couple of times and there is a lot for them to do, shopping, the trading post is great, ranger talks and hikes are really cool for the kids. The movies in the visitors center. Don't cut your time too short, go to the VC first and fid out what activities are available.

The reason the average time spent on the South Rim is so short are the tours that bring the ten second tourists. You know the ones, they jump off the bus, run to the edge, take three photos and run back to the air conditioned bus. Ten Seconds.

Don't forget that there really isn't much to do at Dead Horse Point. It is an overlook but has a nice picnic area. I don't remember if it has water.

Canyonlands has three distinct areas, Island in the Sky and the canyon below DHP. The Needles area and the Maze area. You will only be going to Island and Needles. Arches is a BIG draw and there can be traffic jams. I don't know if the road improvements have been finished and I no longer have any idea about accessibility.

You didn't mentioned Monument Valley, on the way to CYNP from Lake Powell. Lots of beautiful landscapes and movie history.

Have fun and let the kids learn as much as possible from the staffs at the parks.

May i suggest Archview campground just a bit north of moab which is closer to Arches NP, and Cantonlands NP. Stayed there in 2016 nice and close to everything around the area, but far enough away to be peaceful.and also has a gas station on site. And maybe try to work in a visit to Monument Valley also, its unbelievably beautiful