While for most of the day the water in the Svratka riverbed lazily crawls among the grass-covered stones, at the time of electricity production in the local hydroelectric power plant it turns into one of the wildest rivers in the Czech Republic. This has been used for many years by paddlers from a wide area, who have built an attractive canal with number of obstacles in the upper part of the river, in the immediate vicinity of the Vír Dam. Over time, an improvised boating camp with basic facilities, which can be found right on the river bank, has become a part of the area. Less able paddlers can omit the wild water in the canal and board the boat only at the point where the water spills into a wider riverbed. You can park at the former Rotter factory, opposite the Vír Rocks "Velká a Malá věž". From here you can go on a kilometer and a half long cruise ending in the reservoir Vír II. If you are used to combining a raft trip with swimming, get ready for a real rarity in Vír. Due to the fact that the water flows into the river from the depth of approximately 40 meters of the local dam, even during hot summer days its temperature does not exceed 10 °C!