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From Tannu, a small hamlet on the side of the cantonal road; climb the highest point on the road, military barracks and signposted path for the open water leap.
Go up the bisse by the frog path, very beautiful passages, some refreshing waterfalls and, towards Trogere, the path goes away and passes above: in fact it passes on the path of the upper bisse (Riederu Obri) more functional.
The path then passes to Ried where you have to go down about ten meters to find the rest of the leap in water.
Further on it crosses the Ergisch road just above the curb and the path is marked again for Tuminu but the leash is almost entirely channelled under the path in this part. Long: 3.21 km.<br/><br/>_This Adventure has been shared under the [Creative Commons Share Alike](https://creativecommons.org/licenses/by-sa/2.5/) licence._