If you're parking at Port Canaveral here is the info from the Disney Cruise line page
Parking
The parking facility is staffed from 10:30 a.m. to 3:30 p.m. for Guests parking their vehicles prior to embarking the ship. The parking lot and garage are paved, gated and under 24-hour surveillance.
Parking fees are charged when Guests depart the parking facility instead of upon entry. Parking attendants will provide a hang tag to the Guests upon entry of the parking facility. At the end of the cruise, Guests will present the hang tag to the parking attendant and pay the parking fees at that time.
Guests are charged for every day their vehicle is in the lot/garage, which includes the day of arrival and the day of departure from the cruise.
Parking costs are based on cruise itinerary. See below:
$60.00 per parking space for the 3-night cruise
$75.00 per parking space for the 4-night cruise
$90.00 per parking space for the 5-night cruise
$105.00 per parking space for the 6-night cruise
$120.00 per parking space for the 7-night cruise
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