Bergkulpen is the deep, turbulent pool in the divide between zones 2 and 3. The very rock you fish from is in zone 3, and therefore this place is fished with a zone 3-license. Because of the current and turbulence, the pool is difficult to fish, but using a lure, you might have a decent chance to get in contact. But, be very careful at this spot - falling in might be very dangerous.

If you fish with a lure, remember that you can only use one treble hook, and that we in August have a weight limit of 12 grams on lures. Should there be any doubt, Bergkulpen is found here.