We did a truncated version of this trip on a Sunday afternoon. Took about 4 hours at a leisurely pace. Rather than beginning at Rum River North County Park, we started at the midway point... Rum River Central Regional Park. The planned take-out was down at the Rum River South County Park ( Anoka County Fairgrounds ) so we staged a vehicle there. Rum River Central Regional Park is a nice little park and the put-in is a little ramp with a nice, small sand beach area. The river is narrower here, and shallow, so the flow is nice. There are many twists and turns in the river and it flows at a 'playful' pace. Something interesting was that the animals encountered ( geese, wood ducks, blue herons and even a small beaver) did not seem wary or interested in us. In fact, the beaver swam right across my path... only passing in front of my kayak by 2 or 3 feet. When he reached the shore he took time to groom himself, all the while ignoring the two humans paddling 5 feet away, gawking at him. The first half of the trip, perhaps 3 - 4 miles, was very forested and seemed to be more remote than it actually is. Farther down river it widens, deepens and slows... there are more homes, and the sounds of civilization (traffic, trains, people) are more apparent. There was very little boat traffic on the lower half (none on the upper half) of the trip. It was a nice way to spend the afternoon and I recommend it.