The Halloween Carnaval has been drawing crowds to the streets of West Hollywood since 1987 (with a couple years taken off during the COVID-19 pandemic).
Is it a parade? Well, not exactly—because there's no determined order of the participants and people walk in both directions.
But is it really a carnival? Well, there's definitely some masquerading and "riotous excess."
I like to describe it as kind of a walkabout.