The online website said there would be free parking for tour ticket holders. Well, the free parking is only at the 'Welcome Center', not the 'Visitors Center' where we boarded, very confusing. They also said it was "hop off, hop on" at any stop. Not exactly. We tried to reboard at stop 10 to no avail. Several of the competitor's trollys stopped at the trolly stop, while we had to wait and wait for our trolly to show up. They wound up having to send a shuttle that took us back to the starting point. Makes no sense. Very poorly run, will never do it again!