My suggestion is for the first time you should see the South side. The beautiful antique facilities are so worth the visit. Another suggestion for first timers is to stay in Williams AZ at the Grand Canyon RR RV Park and take the train to the canyon. Once there, a bus tour is such a fun way to see the sights without dealing with finding parking spots for a car. Williams is a great destination in itself and is walking distance from the RV park. The above itinerary will not disappoint but better reserve NOW if you decide to do it. About an hour and a half West of Williams on the old Rt 66 alignment outside of Seligman is Grand Canyon Caverns. This place is a time warp that will take you back to the tourist trap 50s and also has an RV park. I consider it a must see for anyone close the GCNP.