On March 19 and 20, a primely-located San Francisco bar will become a ball pit filled with thousands of plastic balls. It will be an adult version of the Chuck E. Cheese experience–except with booze, and hopefully without the pink-eye that often comes with children’s public playpens.

According to the San Francisco Chronicle, a local bucket list organization named Forward Motion San Francisco posted a Facebook announcement of their intention to convert the “Romper Room into the largest ball pit San Francisco has ever seen. This is the first ever event of it’s kind to be done. Growing up is never easy. Come celebrate and reunite with your inner child!”

Tickets for the Saturday and Sunday event are going for $25, and both dates are already sold out on the Eventbrite page.

According to Gizmodo, Shanghai, China is already home to the world’s largest ball pit.

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