Laguna Negra follows a mule driver, a mountain guide, and a park ranger as they prepare for the historic opening of this Andean lake in Cajón del Maipo, Chile, after 150 years of inaccessibility. A vital water source for Santiago, its history is intertwined with a recreation of the 1873 expedition led by Governor Benjamín Vicuña Mackenna. Amid climate change, this documentary amplifies the voices of mountain communities demanding fair and sustainable access to their waters.

Director: Matt Maynard