Canoeing and SUP on the map: over 600 spots in Finland from Saimaa to Päijänne, by municipality. Free to browse, no account needed.
622 places in
Most canoeing & sup are in Kouvola (33), Kuhmo (17) and Helsinki (16). The full list is below by municipality, and the map can be filtered to your own area.
The remaining places are on the map and in the municipality list.