The world's largest bounce house, a 50,000-square-foot inflatable with a 900-foot obstacle course, will operate at Contra Costa Fair and Event Park in Antioch on October 17–18 and October 24–25, 2026.

A 50,000-square-foot bounce house billed as the world's largest is headed to Antioch for two weekends next month, according to Hoodline, citing reports from The Mercury News and the East Bay Times.

The Big Bounce America, a touring inflatable company, will set up at Contra Costa Fair and Event Park, 1201 W 10th St., on Oct. 17–18 and Oct. 24–25.

The centerpiece is a 900-foot-long obstacle course — roughly three times the length of an average soccer field, per the East Bay Times. The event also includes a sports arena with basketball hoops and soccer nets, climbing towers, slides, and a sci-fi-themed area with moon-crater ball pits.

Organizers say the attraction is open to everyone from toddlers to adults.

Tickets start at $35 and include a three-hour pass with timed access to the bounce house itself and unlimited access to the other on-site attractions. A DJ and food trucks will be available both weekends.

Hoodline's report attributes details to The Mercury News and the East Bay Times. Follow those outlets for updates.