The Grotto was a location in Fortnite: Battle Royale in the eastern section of the Apollo map, added in Chapter 2: Season 2. It was located just northeast of Retail Row and south of Dirty Docks. With the arrival of Chapter 2: Season 3, it has been flooded for the theme and is now a landmark named Brutus' Basin.
The Grotto was an underground facility that could be accessed through two holes in the ground. One that led to a helipad above water and another as an air tunnel (presumably as an exit). The underground area was complete with rooms, buildings, stairs and air vents.
SHADOW Henchmen (previously Grotto Henchmen) and Brutus patrolled the area. Security equipment, such as Sentry Cameras and Sentry Turrets were set up all throughout the main base to protect the vault. Ziplines provided quick travel around the base.
- In Week 2 of Chapter 2: Season 2, Brutus joined A.L.T.E.R., and The Grotto displayed a skull on its mountain. In addition, SHADOW Henchmen patrolled instead of the usual Grotto Henchmen, as well as Brutus changing into his A.L.T.E.R. form.
- In Chapter 2, Season 3, the POI was renamed to Brutus’ Basin.
- In Chapter 2, Season 4, there were leaked audio files for Bat sounds and water lever files, codenamed "GrottoRuins". There was a new collaboration between DC and Fortnite, and the main character is Batman, which explains the leaked Bat Audio files. This could be hinting that it might return.