I did it all almost barefoot in five fingers, of course, and I'm continuously astounded at my body's ability to adapt to this new type of running.
But the thing is that it feels so right. No strain. No effort. Just gliding along.
Some muscles in my feet, shins and ankles were pretty tired afterwards, but there's not a single injury to speak of. After running such a distance in my running shoes last year I was hobbling around.
As my muscles adapt, longer distances keep becoming possible, and I begin to see that the horizon of possibility for this type of thing is far greater than I imaged.
I've really been emphasizing proper form (to prevent another injury) and enjoyment over pace, but I looked at the clock today and the 17-miles was done in about 3 hours and 10 minutes. Not blazing fast, but not shabby either.
As my muscles adapt I'll likely be able to do better.
The route is maped out below: