Fortnite: Battle Royale has received a massive change to the map with the new patch 8.4. The once peaceful Loot Lake is now a high-tech bunker.
What happened to Loot Lake? Loot Lake, also known as Leaky Lake, was until recently a peaceful place with waterfalls flowing around an island where you could find plenty of the namesake loot.
However, excavators and a dig site have recently appeared there and with the new patch 8.4, the area has permanently changed.

Where the idyllic island once stood, a massive bunker structure with a gigantic access shaft has now emerged.
Around the structure, excavators and research buildings stand. The whole facility somewhat resembles the research station around the meteor impact at Dusty Divot in Season 4.
However, the bunker complex is many times larger and appears much more advanced.
The end of Season 8 is near
What is hidden in the bunker? What exactly is in the gigantic facility cannot yet be determined. The massive metal walls of the structure are indestructible. But it won’t be long until the bunker reveals its secret, as Season 8 is approaching its end and a massive bunker full of secrets is exactly what gives the season finale the right spice.
Will Thanos return? Possibly, the bunker is also related to the rumored return of Thanos from the upcoming Infinity War film. The purple titan appeared in a controversial game mode back in 2018.

Other theories suggest that the mysterious purple cube that once sank in Loot Lake and then made the central island float is making a return. Perhaps the cube or a part of it is hidden deep within the bunker.
Or we will finally find out what the butterflies were all about after the explosion of the cube back in Season 6.
But until something happens in the bunker, you will unfortunately have to do without the lucrative loot spot at Loot Lake. Cheats won’t help either: