The Murray course can be accessed to play holes 1-9 after playing hole 5 on the Innova course. After 9 you'll brought back to tee 6 on the Innova course. Holes 10-18 on the Murray course can be accessed after playing basket 12 on the Innova course, and will be brought back to tee 13 when finished playing 18 on the Murray course. Navigation is good, with a lot of help with signs distinguishing both courses to avoid confusion.
The Murray Course seems to be a "side" course for those who want to play a second 18 or just by pass it when playing Innova. Tee signs on each course will have the course name on it.
You can play strictly Murray course, but its a walk of at least 1/4 of a mile from the parking lot to hole 1, and after 9 to 10 1/3rd of a mile.