“Chapter Four: The Sauna Test” Filming Locations

The kids join together to investigate Billy, the mall team gets a new recruit to investigate some ventilation shafts, and the mayor comes under suspicion.

Stranger Things episode “Chapter Four: The Sauna Test” was filmed in Atlanta & Lithonia in the United States of America.

6980 Main Street as The Hawkins Post

Tom Holloway yells at Nancy and Jonathan for their investigation and fires them both.

South Bend Pool as Hawkins Community Pool

Eleven, Max, Mike, Lucas, and Will watch Billy and come up with a plan to reveal his true nature.

Source: IMDb