We (husband and I) leave Yosemite 19 June and have to be back in San Fransisco 12 July. In between we'd like to spend time around Anaheim visiting friends - perhaps about 7-10 days in all which could be split; visit Death Valley, Sequoia NP and Grand Canyon, and travel back up the coast to SF. This can be in any order. And we've also been told there may be problems getting around or finding accomodation 4 July time? We are RoadTrip virgins and would welcome advice! Thank you.