If you drive the 91 between Riverside and Yorba Linda, there is a long stretch with no Superchargers at all. Your only options are Canyon Springs to the east or Anaheim Hills to the west, each about 1

they charge $20 to enter the parking structure that has the tesla charger even though i just need to charge my tesla and dont actually need the carage and there is a sign that says first 90 mins free

On top level of a parking garage in a cute downtown area. We went birding in the park next to it ( Gazebo at White Park). 90 minutes of free parking while charging. No bathrooms at charging area.