Matt', you've started 3 threads with just about the same question. It would be easier to follow one thread for everyone—splitting the answers will keep the threads further down the list and fewer people will see it. I suggest you request closing 2 of the 3.
I can't answer your question because last time we were there, we kept driving, having already seen the redwoods years before. Sometimes hookups aren't available where you want to be and you have to accept that, or leave the trailer somewhere else and take the tow vehicle.