Or is that ArtTown FrogWalk? Keeping in mind that a major portion of this self-guided "tour" -- more like mini festival -- takes visitors through a neighborhood now full of art/artisan studios down to the river, where the frogs walk. Tomorrow, Saturday, Aug. 25, 5-11 p.m. There will be outdoor river-related films. There's a non-self-guided tour of the river by Joe Linton, author of Down By the Los Angeles River. For water transpo, there's a Thai-style long-tail riverboat. Installations. Galleries. All in the shadow of Elysian Park in the dark. Organized by my friend Tracy Stone. At last year's walk, I had the pleasure of watching a fire-spitting organ. I've been having crazy dreams ever since.