Fortum is running maintenance below the Imatrankoski hydroelectric power plant. Because of these operations, spillover will be let into dry rapids generally every day between 24.5 and 9.7 during the daytime hours.
Rapids Shows 2021
- 10 July – 20 August daily at 6 pm
- 21 August Imatra Days Rapids Show at 10 pm
- 21 August – 31 August daily at 6 pm
- 6 December Independende Day’s Rapids Show at 5 or 6 pm (will be decided later)
The Rapids Show lasts approx. 16 minutes. Eight minutes after the flood gates are opened, the foams reach their peak with an average of 400 cubic metres of water per second flowing in the stream. 10 July - 31 August the surge of the rapids will be accompanied by music of Jean Sibelius.
The best places to watch the Rapids Shows are Koskisilta Bridge and Koskipuisto Park.