Yes they shuttle you to dock. When you return you can take a taxi to Enterprise they will take the taxi bill off your rental bill.
I have used the San Pedro enterprise numerous times and they do shuttle ...now depending on how long the cruise is you might find it less expensive to park at the cruise ship terminal that is a secured parking lot...rather than drop it off and rerent....enterprise may work a deal with you ...if you reserve the return car when dropping it off...for a multiple day rate.....if you have AAA or AARP...or your car insurance ... check and see if they have discount coupons...it's worth the savings..
This isn't the Enterprise site.youneed to contact them for open hours. I do know they shuttle from the place to the cruise terminal and back but you need to see what time they open and close
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