Seemingly built in defiance of the desert-like landscape, Uyuni stands desolate yet undaunted in Bolivia’s southwestern corner. Mention Uyuni to a Bolivian and they will whistle and emphasize harto frío (extreme cold). Yet despite the icy conditions, Uyuni’s got a cheerful buzz about it with hundreds of travelers passing through every week to kick off their tour of the Salar de Uyuni or the Southwest Circuit.