Walk! As you exit the park, stay to the left. You will see the canal to your immediate left, the bus stops to your right, the parking lot in front. Keep walking, with the lot on your right and the canal on the left. You will come to a downhill slope to the left...there should be a sign there telling you 'this way to BW'. Go down, keep walking. It is a very nice sidewalk and well lit after dark...I've walked it at 2am, by myself!!! The walk takes about 15-18 mins depending on pace. You can cut through the resort at the pool area (the main pool with the slide!)...cut through there, go thru the little tunnel area and you're at the Village Green...Flying Fish is across the green. If you go to the end of the sidewalk...go right past JellyRolls and keep walking to FF.
The boat will take way too long after Fantasmic!