Ahoy there, Lisa!
Thanks for sailing by planDisney with your question! How exciting to have an amazing 7-Night Northern European Disney Cruise Line vacation on the horizon. I just dove into your itinerary and I'm thinking I need to book it, too!
To answer your question, I checked with a Disney Cruise Line Reservation Specialist. While she didn't know the exact answer since these Port Adventures are coordinated with independent contractors, she was incredibly helpful in knowing how you can obtain answers to your specific questions about your desired Port Adventure. Since Port Adventures like an 8-hour Private Sedan with a Guide is among the Premium adventures, you need to submit a Private Port Adventure Request Form and a Disney Cruise Line representative will be in touch to answer all your questions and help you make plans for your special day.
You can find the Request Form on the Disney Cruise Line website by navigating to the Port Adventures page, and scrolling down and selecting the Private Port Adventures information. Under YOUR DAY, YOUR WAY, click on How to Book where more information, including a link to the Request Form, will pop up. You will need to log into your Disney account to complete the form. Once submitted, a Disney Cruise Line representative will be in touch with you and can assist you with planning your private port adventure and answer all your questions.
Lisa, I noticed that you asked a question about the cost of these Port Adventures, and I'm happy to tell you the price is for a vehicle load, not per person. One person in your party will complete the reservation process and the full charge will be applied to that person's stateroom account. Keep in mind that the price will be the same even if your travel party does not meet the maximum number allowed on the excursion. Also, if you decide to use a Private Tour Guide, the guide will reduce the vehicle's capacity by one. You can ask the Disney Cruise Line representative for more information about vehicle capacity, too.
I hope this information is what you were looking to find, Lisa. As you are planning this incredible vacation, please let us know if you have other questions; we are here to help!
Wishing you many magical memories,
Shannon