17:48 The Plains.
Incidentally, how do you find it to TA? Obviously I never went through the whole route-planning process because I already knew what the fastest way was. Oh, and you can press R mid-run to die causing a restart, if that's any help.
EDIT: 19.83 Great Forest. To get any faster I'm gonna have to move the finish to right next to the start or turn debug mode on >_>