The drive from Monterey to Yosemite was quite long but Yosemite was so worth it. I would definitely suggest getting food/petrol beforehand as inside Yosemite it is really expensive. We got out at El Capitan which was massive and then we drove to look for the Tunnel view which is the postcard view of Yosemite.
We drove out towards Bishop and stayed at the Vagabond motel on the other side of Yosemite. It had a pool - which was very welcome in the heat - and some great places to eat nearby.
Death Valley is not too far away from Bishop so we didn't have to head off too early. Death Valley is one of the hottest places in the world, but just so amazing to see. We began our trip with a visit to the information point where they shared a map with us and directed us to a couple of places we wanted to see like Badwater Basin and a few sites where Star Wars was filmed. Definitely enter Death Valley with lots of water in the car and a map in case GPS does not work, because it really is extremely hot!
On the way out of Death Valley we went into a ghost town which was really interesting to see - it is a town that is now abandoned and only warranted a quick trip but all the same, good to see.