We are planning a 4/5 day RV trip with 2 kids (10 yrs. & 8 yrs.) from So. California to Grand Canyon, maybe stopping at Hoover Dam as well. This will be our first RV road trip and we would welcome any advice from any of you trip veterans. I guess we're going to South Rim since I read North Rim is closed during November. Things to remember? Places to visit? Things to be aware of? Must haves in RV? Ways to avoid added RV rental expenses?