Image credit: Roblox/VG247 Image credit: Roblox/VG247 From the sign, go into the right-hand tunnel behind it, then keep swimming forward through the narrow passage, avoiding the sea mines as you go.

The Brine Pool is a new area in Roblox Fisch, introduced with the Desolate Dwelling update. It is one of the three primary locations that you can explore in the game.