Husband, sons 17 and 13 and myself arriving from NJ to Vegas 9/14 early a.m., departing 9/19. 13 yr old wants to see redwoods. I would like to see Hoover Dam. Husband and I have been to Yosemite and while would not mind visiting again, wonder if Kings Canyon & Sequoia logistically make any sense. When I tried to plan a route on map do not really see a logical loop. We are pretty open to suggestions. Would like to see a sampling of different locales but do not want to spend 8 hrs a day in the car the whole time. Thanks for any help as there are just so many amazing choices.