Now in its 20th year, Valley of the Vapors (VOV) is an international underground music festival that takes place each spring in Hot Springs National Park. Over the past two decades, VOV has hosted approximately 3500 musicians and artists from around the world and is known for the fun twists it puts on the festival format—including secret shows, surprise locations and intimate workshops—as well as providing out-of-the-ordinary hospitality for visiting artists.