We reserved the C1 with parkwhiz for our Zaandam 25 night cruise this past august but when we got there it was gated close. We cancelled a few minutes before our scheduled arrival time to get a full refund. Then drove across the street to the covered abm marine garage/ edic. Went into the office and asked about monthly parking ($415). Took a ticket from the machine but when it is time to pay at the end of the cruise you need to go into the office.