It will probably be less than 3 hours. I just wanted to cover my bases. Anyway my traditional December suburban sunday stroll hike. Just a nice stroll along the Tualatin river to get some exercise despite the cold time of year. Mostly level and paved. There is a half a mile section or so that is not paved. If time and weather permitting we might hit a geocache. No carpooling necessary unless you can provide your own from Vancouver or any place else that is further away. I put the map pin where we will begin the hike. 4 miles or so total