If you manage to drop down at the border of Salty Springs and Paradise Palms, then you will find yourself at the broken bridge that hangs between the two Fortnite locations.
Lucky for you, the bridge is packed with treasure chests that can be found inside and outside the location. But that's not it! If you go downstairs into the mine, you will find another chest or two behind the walls of the hidden mining facility.
Also, a small oasis to the south of the bridge often spawns open rift portals for you to jump into.