Hi Farahnaz,
I'm not sure exactly which
Speciality Cruise you have booked but can tell you that there is no direct
Complimentary Resort Transportation from Disney Springs to the Magic Kingdom Park.
Depending on which Speciality Cruise you have booked and where you will be departing from, I think that your best bet would be to take a bus from Disney Springs to Disney's Contemporary Resort.
Should your Speciality Cruise be leaving from an alternative Magic Kingdom Resort hotel, you can take the
Resort Monorail from here to Disney's Grand Floridian Resort & Spa, Disney's Polynesian Village Resort, the Magic Kingdom Park and the Transportation & Ticket Center (TTC).
Wishing you a magical trip filled with memories which will last a lifetime!
Emma