Celebrate Austin's famous bridge bats with a full afternoon and evening of music, food, costumes, family activities, and downtown festival energy. Multiple stages and local vendors keep Congress Avenue lively while everyone waits for the city's enormous Mexican free-tailed bat colony to stream into the sunset sky. Part concert, part street festival, and part only-in-Austin wildlife spectacle, Bat Fest turns one of the city's signature natural moments into a memorable communal party.