Last Minute: San Fran - Yosemite - PCH (Santa Cruz-Santa Barbara) - Las Vegas - Zion

[LastMinuteTrip]

Hi Folks,

As usual I have left it to the last minute, but would like to take my folks on a Road Trip to California (both Seniors 65+). I would appreciate any advice on the following itinerary, plus any alternative routes (e.g. return back to SF):

3/24 Day 0 Arrive San Fran
3/25 Day 1 San Fran
3/26 Day 2 San Fran
3/27 Day 3 San Fran - Yosemite - Leave SF via Muir Woods to Yosemite accommodation e.g. Mariposa/Sonora (or similar ideas appreciated) inorder to visit Yosemite the next day. Route Ideas?
3/28 Day 4 Yosemite - Spend day here with Lower floor bus tour. Concerns over snow chain requirements (have a rental, buy or hire chains? Or consider taking public transport into the park instead, due to rental restrictions on chains?)
3/29 Day 5 Yosemite - Monterey - Route Ideas?
3/30 Day 6 Monterey - San Luis Obispo
3/31 Day 7 San Luis Obispo - Santa Barbara
4/01 Day 8 Santa Barbara
4/02 Day 9 Santa Barbara to Las Vegas. Route ideas / traffic / times to avoid?
4/03 Day 10 Las Vegas
4/04 Day 11 Las Vegas - Zion - Possibly stay in Spring Dale. Route ideas?
4/05 Day 12 Zion - Possibly include another national park?
4/06 Day 13 Zion - Las Vegas - Drive back to LV in the morning for an evening flight back.

Main concern is around Yosemite particularly with the Snow Chain requirements and where to stay, which highway, plus alternate public transport into the park, plus trying to avoid National parks where alot of walking is required due to taking the folks.

Many Thanks in advance :)