Hi, Arielle!
Congratulations on your upcoming cruise aboard the Disney Dream -- she is a stylish and oh-so spectacular ship! Having just stepped off the Disney Dream a few days ago, I can proudly report that she is ready for you and yours to sail!
Not being completely aware of the situation and the member in your traveling party requiring a wheelchair, you will need to thumb through each of the
Port Adventures for Nassau to read the descriptions. For instance, for my mom who is in a wheelchair, she could take the Sunshine Glass Bottom Boat Tour since she would be able to take a few steps by herself and walk up a staircase. However, you'll need to read the descriptions to see if they are conducive for your loved one.
At Castaway Cay and on the ship, it's a little easier to advise you since Disney has made every effort to make Disney Cruise Line ships and the island accessible to all guests. You can read all about accommodations made for
Guests with Disabilities, or you can call a special reservations line to get your questions answered and vacations booked at (407) 566-3500. I do know that the Glass Bottom Boat Scenic Voyage on Castaway Cay is accessible with a standard, non-electric wheelchair, but the Castaway Cay Island Cruise is not accessible at all.
I hope this helps you plan. Have a wonderful day and a magical vacation. Bon voyage!
Andi