Your title says a 20 day road trip but it looks like 13 days for the 'road trip bit'. Hopefully you aren't having an RV while in San Franciso. Totally inconvenient - almost impossible to park it anywhere in the city.

Also - April is early for visiting Yosemite/Sequoia/Bryce/north rim. Yosemite Valley will be accessible but other parts of the park won't be.

Are you absolutely set on using an RV? Some of that route will be much faster/easier by car and motels will likely be cheaper.

The way I read it the RV part is 14 days and the extra days in SF and SD/LA without the RV bring them up to a total of 20.

I would immediately post this on the RV.net forum under routes. After establishing your route post again under the RV park section and find your overnight sites. You will get tons of advise from RV people who will not try to talk you out of renting the RV and have actual experience of RVing in the areas you are going to. To research RV campgrounds that are recommended to you go to RVparkreviews.com. In addition, the RV company you are renting from should have some suggested routes on their website.

What a great trip you have planned! Have fun.

I'm not trying to talk them out of it - and yes I do have RV experience. I just suggested they consider the car option, mainly because of the time of year. .

> Advice on hikes
> Yosemite, Sequoia, Bryce, Zion, Grand Canyon

Here's some good links:
http://www.nps.gov/yose/planyourvisit/valleyhikes.htm
http://www.yosemite.national-park.com/hike.htm
http://www.nps.gov/seki/planyourvisit/dayhikes.htm
http://www.sequoia.national-park.com/hike.htm
http://www.nps.gov/brca/planyourvisit/hiking.htm
http://www.bryce.canyon.national-park.com/hike.htm
http://www.nps.gov/zion/planyourvisit/upload/HikingGuide.pdf
http://www.yosemite.national-park.com/hike.htm
www.nps.gov/grca/planyourvisit/day-hiking.htm#CP_JUMP_109531
http://www.grand.canyon.national-park.com/hike.htm#day
http://www.bobspixels.com/kaibab.org/bc/gc_trail.htm#south