San Francisco’s Soundwave art and music festival is ending its sixth season of programming with a very special floating show on Sunday night. This year, the festival explored the relationship between audio and water, making it only fitting that the closing performance features Oakland electronic wiz Yalls performing onboard the Harbor Queen Ferry in the San Francisco Bay. There are two shows to choose from — one at sunset and one later at twilight (6pm and 7:30pm, respectively) — so you’ve got no excuse to miss what should be a very unique local music experience.

Tickets are only available in advance, and can be purchased on Soundwave’s web site.