The "Friendship Boats" run between Epcot - International Gateway -, the BC/YC, BW, and MGM Studios..take about 15 minutes from one end to the other, and back again.
It's a lovely break between parks Stop off at the Beach Club for lunch at Beaches and Creams, or a steak at the Yachtsmen...or ESPN , Spoodles at eh Boardwalk..
Jump on a boat, and head back to a prk refreshed and ready to "tour some more!!"