Took an exploratory trip on the Sarca River in Northern Italy the other day (5 Aug 2013). Turned out to be very different than what I expected. Started in Riva with a $3 bus ticket and a 30min ride to just south of Pietramurata (see the KML link below). Hiked the packraft through some grape and fruit orchards to the Sarca and started what I thought would be a casual float to Lake Garda, ~13 miles away.
The only information I could find on paddling the Sarca seemed to indicate a short stretch of technical rapids (http://www.ckfiumi.net/consulta.phtml/207/204 ). Something I surely could walk around. Surprisingly, the rapids started almost immediately and didn’t let up until Arco, ~8 miles downstream. It was mostly class II with lots and lots of class III pool drops through rock gardens and ancient dams. The water level was low but passible in a packraft. I’d love to return in June or early July when I expect this would run at solid class III and IV. A real gem!
There are a few mandatory portages and one ~200yrd section of huge river blocks. You’ll know when you’re there, the first is about 2 stories high and completely plugs the river. I deflated and hiked around on river right.
The river up to the Roman bridge by Ceniga, felt very remote, few people, it travels through a beautiful narrow river gorge with overhanging trees, lots of rock gardens, and pools with an occasional riverside vineyard. At and after the bridge though, the river bathers come out to skinny dip and frolic. I surprised quite a few. By Arco, it is quite crowded with bathers and turns industrial in character to just before Torbole. Not sure I would paddle this section again. The output from the fish farm was retched and left my boat coated in grease. The hydroelectric plant adds about 10x the water volume and makes the last mile to Lake Garda quite exciting. I hiked around the plant but in hindsight would just run it, the dam looks small and smooth.
So for future runs, I’d suggest starting in Arco, catch the bus to just north of Pietramurata and paddle back to Arco. The short run from the hydro station and out into the lake would be fun on it’s own, especially if the surf is up at the mouth of the river.
https://picasaweb.google.com/david.austin.nix/PackraftingSarcaRiverPietramurataToLakeGarda
http://bioserver.hci.utah.edu/Misc/BCB/KML/Sarca-PietramuratToTorbole5Aug2013.kml