The Grassrivers are a natural region of flooded grasslands located in the south of Leonida in GTA 6.
It is shown to encroach on both 
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The area draws inspiration from the real-life Everglades in Florida, featuring a huge array of wildlife that can be spotted across Trailer 1 and 2.
The Leonida Grassrivers are most well-known for their gator population, but there are far deadlier predators lurking in the wetlands for those that look for them.
Because of the area's heavy flooding, a Leonida citizen is shown traversing the area using a fanboat in Trailer 1.
The name Grassrivers first appeared in GTA 4, where it appeared as part of an online travel advertisment and on a post on Craplist (a parody of Craigslist).
It is thought to be inspired by Marjory Stoneman Douglas' book: The Everglades: River of Grass.
