We will be staying in Yosemite from August 22-24, 2012. We wanted to drive down to KC and SNP on the 25th. Can we see the sites of both parks in one day without burning ourselves out too bad (driving)? We will be traveling with two people in their 70's who do not hike. We just want to see the sites. Should I book a room inside the park for one day? I have read about the road construction. Will this make it too long of a day if we book a room in Visalia rather than inside the park?