There's a park in our city that is more like a 2-track over the river and through the woods.
Or sometimes through the river...
Anyway, Saturday I did the walk (according to my pedometer it's a shade over 3 miles - 5K) in 56 minutes (of walking time, along with some time out to take photos of a couple of critters). Today I did it in 52.
Next week Saturday I'm registered for my very first 5K walk - there's a 45 minute time limit - but it's on level city sidewalks. And most likely no critters.