Philippe, sorry it took so long for me to reply. I haven't scrolled down to this section of the boards and missed the question.

Some background on this trip. First off, the kids that I take are nine years old or so. They are very inexperienced, mediocre paddlers who paddle from bank to bank. There are three other adults on the trip. We take it slowly, let the kids swim, etc. It takes us five or six hours at this pace to get from Springbrook to Earl and another hour and a half to get from Earl to Trego. Groat is the farthest upstream that I've ever paddled. I can't give you an accurate answer on whether or not you could get from Hayward to Trego in two days. To me, that seems like a bit much with kids. But it depends on the pace of your trip. If you want to start early in the morning on day one and paddle for eight hours and do the same on day two, you could probably do it.  It depends what time you want to get started and finish each day. Personally, I think that you're better off camping around Springbrook or Groat on day one, to Earl on day two. This gives you a short day on the third day so you can either get a late start or pack up and get off the river early.

As for pulling out and putting back in further down the river, that seems to be more effort then it's worth. To get off the river after a long day on day two, drive to county K (it's about a fifteen minute drive), get back on the river and find your campsite just seems not worth it. The area between County K and Fritz is nice. I just think that I'd take it slower between Hayward and Trego and enjoy that part of the river. I am wondering what time you'd want to be off the river on day three, especially if you've got to drive home. If you head down to County K, you are going to spend a long day on the river on your third and final day.

Sorry that I can't tell you more about the Nam between Hayward and Groat. Overall, I think that the longer trip really changes the dynamic of the trip. If you're going for more of a challange rather than a slow river, I'd suggest hitting the Flambeau. In terms of traffic, Hayward to Trego is going to see more traffic than County K to the Namekagon Trail Bridge or Riverside. If you want to stay away from traffic, do not camp at Earl Park.