During the main quest “To Catch a Coon” in South Park the Fractured But Whole, you receive a riddle from Conner called the “Happiness Reigns” riddle.
Over the phone you are told: “I am a place where seats hang from chains, part desert, part jungle, where happiness reigns”. Just like with the previous Death Store Riddle there are no checkpoints on the map.
The solution: It’s The Playground of South Park, found on the east-side of town at the end of main street. See the screenshot below:
Go there on foot (fast travel is disabled in this quest), talk to the woman in the blue shirt and take a selfie with her. The remainder of the quest has waypoint markers again 🙂