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Canoeing/kayaking in the rapids


As a paddler you are always responsible for your decisions. The routes are always recommendations, never absolute thruths. The flowing speed and water level in the rapids can change. In winter the ice can move the stones. Only an experienced canoeist or trained guide can reliably estimate the conditions. When you are on your own out there you need to observe the rapids one by one and make your desicions.

Information on paddling in the rapids for paddlers with different levels of experience.


The Ahvionkoski rapids area includes some 35 hectares. In the upper parts the river flows steadily. The actual rapids with whitewater are in the lower part of the area where the river is divided in two branches. The Kotokoski rapids  in the west are wide and slower than the the Martinkoski rapids on the eastern side. If the water level is high enough the Kotokoski rapids are easier to shoot down.


The lenght of the rapids is one kilometre and the river drops 1,3 metres. After the bridge there is a 100 metres' area where the river drops 70 centimetres. The flow varies quite a lot, between 60-270 m a second. From mid April to the beginnig of June and from mid August to mid October the water level is regulated for farming purposes in the lower parts of the river. Then the water level there is about 20 cm lower than normal which increases the drop of the rapids significantly. In spring when the flooding and water level below the rapids is low, the rapids could be classified as III. In midsummer or other periods with less water (less than 100 m3/s) the rapids are of class I-II. The Hirvikoski rapids are at their best from April to midsummer and again in autumn when the rains increase the flow to more than 160 m3/s.