In the movie Drive (and many others) the main characters are driving within some sort of a canal:
What is the exact location of this canal in LA? And is it legal/possible to drive there?
It is the Los Angeles River, not a canal. They paved it with cement to control erosion and such since it runs through a major city. Part of the year it is dry, part of the year water flows through it.
The public can not drive through it. Film crews get permits to shoot there and can only film certain times of year. Otherwise the only other folks there are city employees on maintenance type duties.
I am not sure which section of the river they filmed Drive along.