As construction crews continue to pull the Chicago Riverwalk farther into the city’s iconic waterway, Sasaki Associates has released a short documentary about the $100 million transformation. And it’s worth a watch because what’s happening in Chicago is more than your typical “reclaiming public space” type of story.

Yes, the Riverwalk is reclaiming public space, but that public space is not the typical brownfield site or underused lot—it’s the Chicago River. And building a 3.5-acre public park on top of it is no easy task. When complete, the Riverwalk will have a seamless path that connects its distinct segments: the marina, the cove, the river theater, the water plaza, and the jetty. Collectively, the Riverwalk includes new seating, floating wetland gardens, piers, and a water plaza. And let’s not forget the kayaks—there will be plenty of those too. Watch above to see how Sasaki, Ross Barney Architects, and the Chicago Department of Transportation are making all of this possible.