AT A GLANCE
Why go?
Imagine a steep riverbank where, in 1833, a young naturalist knelt in the red earth and turned over a fossilized clamshell that helped him begin to imagine one of the most transformative ideas in science. That bank still stands at Rincón de Darwin, a windswept promontory at Punta Gorda in Uruguay's Colonia department, barely four kilometres from Nueva Palmira. Today a zigzagging spiral staircase with 120 steps descends the fifteen-metre cliff face you were meant to see, and at its base a plaque reads:
Where Two Rivers Became One
Rincón de Darwin sits at what many Uruguayans call the birthplace of the Río de la Plata — the exact point where the Paraná and Uruguay rivers merge their colours and currents. Darwin himself wrote of the scene: two distinct water tones visible when the sun struck, dense forests so thick
What makes it special
The spiral staircase descending the fossil-rich cliff lets you read the geological strata Darwin studied in 1833↗