419 km of surveyed smooth ground mapped in Kasumigaura, plus 0 skateparks. Graded for skateboards, inline skates and quads.
Open Kasumigaura on the map| Smooth ground mapped | 419 km |
|---|---|
| Separate stretches | 1,337 |
| Away from traffic | 92% |
| Skateparks within 15 km | 0 |
Surfaces are graded for small wheels from OpenStreetMap survey data — asphalt, concrete and paving quality, with anything over 30 mph and every A-road excluded, because a road being smooth and a road being safe to skate are not the same thing.