Shortly after Murgenthal you feel the presence of the Ruppooldingen power station dam, although the shoreline continues to exhibit wild and rugged nature. On constructing the power plant particular attention was paid to maintaining the natural character of this peaceful river-scape.

Not only is the water calmer, hardly more than the sounds of nature are perceptible - except briefly before the weir on the short stretch accompanied by the motorway.

A few sand banks later you reach Aarburg, with its imposing fort. Making a forced sharp left turn through the rock, the waters create a large eddy known here as “Woog” – which you’re wise to bypass from the left.

Somewhat quieter, although requiring great attention owing to rocks and islands in the flow, you now find your self well on the way to Olten, well-known for its considerable railway history.