Average ratings are based on the published values and not the values entered in your own log entries.
Took me longer then it should because I was constantly trying to locate my position with my GPS. Man...that map they give you is way off. The extra distance is because I measured from the parking lot and did some walking around the falls to get to the trail head.
Creek was dry as a bone. No water crossings at all. More fun when off the trail and in the actual creek bed when possible.