In Here Comes the Flood (only tested in that scenario thus far), the Turtleback Ferry location ability does nothing. The ability lets you move at the end of your turn, but while tapping on it brings up the map and asks you to choose a location, nothing works from that point. I couldn't even select the Woods, and selecting any of the other three locations and tapping the "continue" arrow just returned me back to Turtleback Ferry.

Hmm. I successfully used the Turtleback Ferry location ability to move a character at the end of a turn.  Pretty sure it wasn't in the Here Comes The Flood scenario, as there is less reason to move characters in that scenario.