A very nice route through the forest. The beginning isn't very interesting, but once you enter the forest it's great. The route is much better than the designated ones, and in its favor there is no washboard, which is common on gravel roads.
Driving from Macharka towards Płociczna, after passing the intersection with the national road, turn left onto the first forest road. At the end of this section we leave at the parking lot near Lake Białe Augustowskie.