Well, we "day trip" over 100 miles many a time up in Yellowstone and Grand Teton National Parks. We park the FW in Colter Bay and then get up early in the morning and drive to Yellowstone, it's about 45 miles to the south entrance and then tour the park and come back home. Having done this for many years, we kinda know what we want to see. I would suspect that this trip might be a stretch, but will probably try it anyway. Otherwise, if it seems too far to be comfortable, we might just find a campground around Sequoia for a day or so while we look it over. We will leave from there and go over to the Palm Springs area and see some friends there and take in the Living Desert there as well.