Hidden LA, a really great blog that you should probably be checking out anyway, just offered a driving and walking tour of the L.A. River that was a great success – completely selling out in a matter of hours.

The event was so successful, in fact, that they’re offering two more tours. On Sunday, August 22nd and Sunday, August 29th, they will be leading two more full-day tours of the riverfront.

If you’re interested in the past and future of L.A.’s soon-to-be-rescued waterway, this is probably a great way to spend a Sunday. But get your tickets fast – because the 22nd is already almost half sold-out already!

For pictures of the recent river tour, check out this album on Facebook, and for some pictures of the L.A. River from the late 1800s, be sure to read this recent post on Hidden Los Angeles.

Tags: hidden los angeles, Los Angeles, los angeles river, outdoors, tour, urban river