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Rock CF Thumb Coast Marathon, Half Marathon & 5K

November 8, 2026
Port Austin, MI 48467 US

Parking Information

 

Start Lines

Marathon: Caseville Harbor Office 6:00-7:45am
Half Marathon: Sleeper State Park 6:00-8:15am
5K: Downtown Port Austion on Lake Huron Circle Tour between Railroad and State 6:30-8:45am

Finish Line

All distances finish in downtown Port Austin on Lake Huron Circle Tour (M53).

 

Parking

We recommend using shuttles to the Marathon and Half Marathon start lines if you don't have someone dropping you off.  Learn more about shuttles here.

If you park at either Port Austin State Harbor or Sleeper State Park, you'll need a State Recreation Passport (good at all parks all year) upon arrival. This money will be collected at the gate if you do not already have one, but it's cheaper and easier to enter to get it ahead of time!

 

Marathon

Best Option:
  • Shuttle from the Port Austin Welcome Center to the Marathon start line in Caseville.
    • Marathon Shuttle Departure Times - 6:20am & 6:50am.  Shuttle check in begins 30 minutes before shuttle departure.
    • We will not be offering post-race shuttles back to Caseville or Sleeper State Park.
Other Options:
  • Utilize the city streets of Caseville that are not on the marathon course.  Map coming soon.
  • Caseville High School
    • The lot will close at 7:30am, 30min prior to race start. Vehicles will not be able to leave here until the last runner passes through.

 

Half Marathon

Best Option:
  • Shuttle from the Port Austin Welcome Center to the Half Marathon start line at Sleeper State Park.
    • Half Marathon Shuttle Departure Times - 7:15am, 7:30am & 7:45am  Shuttle check in begins 30 minutes before shuttle departure.
    • We will not be offering post-race shuttles back to Caseville or Sleeper State Park.
  • Runner drop off is allowed on State Park & M25.  Map coming soon.
Other Options:
  • Limited parking is available at Sleeper State Park in the North and South lots along M25.  Map coming soon.

 

5K

  • You may utilize any of the public parking along the roads of Downtown Port Austin that are not utilized on course. Please do NOT park on M25 (Spring Rd) or Lake St as this is part of the finish route for all courses.  Map coming soon.

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