

The Hjälmare canal is 13.7 km long and links the Mälaren and Hjälmaren lakes, running from Gravudden beside Arbogaån and Notholmen in Hjälmaren. The 22-metre difference in levels is divided between nine manually-operated locks.
The Hjälmare canal is 13.7 km long and links the Mälaren and Hjälmaren lakes, running from Gravudden beside Arbogaån and Notholmen in Hjälmaren. The 22-metre difference in levels is divided between nine manually-operated locks.
700 pleasure craft and 200 charter craft a season use the locks in the canal. There is a guest harbour at Hjälmare Dock and a number of guest harbours on the Mälaren and Hjälmaren lakes. Vessels enter and leave Hjälmare Dock during the six-month summer period.
| Built in: | 1629-1639 |
| Length of the canal: | 13.7 km (7 M) of which 8.5 km is excavated |
| Number of locks: | 9 |
| Difference in levels: | 22 m |
| Number of guest harbours: | 10 |
| Maximum dimensions for boats: | Width: 47 m; length: 30 m; depth 1. 95 m; height: no restrictions |
| Chart: | Boat sport chart for the Dalsland canal (Swedish Maritime Administration) |
| Recommended number of days to pass through the canal: | 0,5-2 days |