From Fribourg the route heads east, through fairly hilly farmland, on a mixture of minor roads and busier roads, to the edge of Thun. The route then flattens and continues, mostly on minor roads or busy roads with cycleways, to Spiez and along the south shore of Lake Thun (Thunersee) to Interlaken.
| Steepness: | 
|---|
| <1%: 51km/32mi | 
|---|
| 1%-3%: 18km/11mi | 
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| 3%-6%: 6km/4mi | 
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| 6%-9%: 3km/1.8mi | 
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| 9%-12%: 1.6km/1mi | 
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| >12%: 1.9km/1.2mi | 
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We welcome corrections and updates.