Why don't you ask the kids what they want to see? I took the eldest two grand children on a short week long trip up 395. I lived in SoCal at the time. They were 17(F) and 16(M) years old, respectively. I was amazed at how much time they spent reading EVERYTHING at Manzanar. The Lava Tubes were the same. The Mammoth fault was awesome, in their eyes. Then, of course, the Tofa towers at mono lake was another all day thing. I didn't expect any of these things to be of such great interest to teenagers, especially the grandson (Varsity football kid). Everything we did was new to them. I basically told my wife before this trip that we would make the trip a learning experience for them to remember for eternity. The other grand children (12 total) heard about the trip and are awaiting their turns. We did the same thing with a couple of our children 25 years prior. I let the eldest tell me where she wanted to go, day by day. I drove, she navigated (maps...no internet yet). She recounts that time as her favorite vacation ever....and she's been all across the nation, and to Hawaii a few times.