Funny .... It's the opposite situation for me - I'm planning on taking my dad to Yellowstone next year for a father/son 2 week excursion!
My little boy is too young to fully enjoy it (3yrs), but I think 6 is a good age.
He will love it!
I'm taking notes from this thread, please update when you get back
"In Omnia Paratus"
80 series Turbo Diesel Toyota 1HD-FT Landcruiser, 5 Speed Manual, Triple Locked, gTurbo, 35" AT's, Metal Tech sliders, custom rear bumper with dual swingouts, Warn 9.5xp, ARB front, OME lift
LV-416 Explorer Trailer, CVT RTT