We have set aside 2-3 months to tour the country with the kids. We were planning to tent camp at state parks and national parks and stay with friends and family. We have done some math and came thought that $6000 would cover our expenses. $1400 for gas, $2000 for camping or occasional cheap hotel, $1000 for food, $1000 for fun and $600 for car repairs on the road. We are starting on the Chesapeake Bay in VA and then want to make our way across through WVa, Kentucky(Mammoth Cave NP), Arkansas, Denver, Utah, Grand Canyon, Las Vegas, Yosemite NP, San Fransisco, Lake Tahoe, Idaho, Glacier NP, Yellowstone NP, Mt. Rushmore, Iowa, back to Chesapeake Bay, VA. We already have all of our camping gear. Our kids are great travellers. We regularly do 10-12hour road trips. They are also great little hikers. How long would one set aside to camp in the National Parks such as the Grand Canyon, Yosemite, Glacier and Yellowstone. Our kids are young...7,5,2. i am thinking 3-4 days at each park. I noticed that we would need to make reservations at those parks well in advance. Once i make the reservations, how flexible are they? I mean if we are a day earlier or a day later, is that a problem? Then there was Utah. There are so many cool spots to visit there. I had penciled in Arches and Zion. I would love to hear from others which ones would be best to take the kids. We homeschool our kids, so this will be an educational trip as well (2nd grade level). Any places that are a "must see" with kids? Or are there any places that we should definitely avoid with kids? Thanks for any information you might have.