Brazil has a 1,565-square-kilometre “desert” that floods every rainy season; freshwater lagoons appear between white dunes, then vanish

Northeast Brazil’s Lençóis Maranhenses transforms annually with thousands of turquoise lagoons. Heavy rains fill hollows between sand dunes, creating temporary freshwater bodies. These lagoons connect to rivers, allowing fish to inhabit them seasonally. The wolf fish survives dry periods by burying itself in the muck. This dynamic dune field offers a unique natural spectacle for visitors.
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