The Seven Seas Lagoon allows for the use of Disney ferryboats that transport guests between the Magic Kingdom and what transportation hub?
Seven Seas Lagoon:  The lagoon is used mainly for recreational boating, as well as by the resort's three Disney Transport ferryboats that transport guests between the Magic Kingdom and the Transportation and Ticket Center. Transportation and Ticket Center: The Transportation and Ticket Center (TTC) is an intermodal monorail, ferry, and bus transportation hub on the Walt Disney World Resort.
Transportation and Ticket Center