This 18-minute video documents a rather indirect 15-mile stroll from Hollywood, through Griffith Park, to Glendale. (Looks like they circumvent Atwater Village by crossing the LA River at Colorado Blvd.)
From what I can tell it's part of a walk across America - Venice (CA) to Manhattan (NY) - now underway. Or maybe it was underway at some time in the past. I'm not entirely sure. And the guys in the video sometimes lapse into British and/or redneck accents. This might be for comedic effect. Luckily the music drowns them out.