17 miles

I'll be out riding most of the Harvest Moon HIM bike course that day (~50 miles).  Probably won't come into the park and will just park out on the dirt pulloff near the road that turns towards the park.  Not sure what your friend will be doing, but my brother and I will be out there.  Although I would like to go in and see the park before my sprint tri there next week, maybe I'll come into the park after he leaves to go home.  What time you planning on being there at/until?