This challenge is part of Fortnite Chapter 2 Season 1 "Forged in Slurp" mission. You have to dance at Compact Cars, Lockie's Lighthouse, and a Weather Station on the new map. You will find them in the southeast of Fanzy Farm, on an island to the north of the map and in the small snowy biome to the southeast of the map.
Map
To complete this challenge, you will need to do your best dance move on the different notable locations indicated on the map.