I am trying to map out a route for our first epic road trip from DFW area with stops at Carlsbad caverns, Petrified forest, Grand Canyon, Sequoia park, and ultimately the Redwood Forest. I will have my 7 year old son, his 12-13 yr old cousin, our dog, and myself. I would love to camp out as much as we can just as long as it is night time temps no higher than 65. I am skeptical and I find the idea of cooler climates in summer months far-fetched though intriguing. Is this pipe dream even possible? Also, any suggestions for stops to make this tree hugging trip more exciting for the kids?