Potrok Aike is a lagoon in the Patagonianprovince of Santa Cruz, Argentina. It has a roughly circular shape and an average diamete of 2,700 metres. Its is located just 2,200 metres north of the Argentina-Chile border. It is a maarlake and part of the Pali-Aike Volcanic Field. The Potrok Aike Maar Lake Sediment Archive Drilling Project (PASADO) bore a number of ICDP drill holes for October-November 2008. The aim is to investigate the crater-filling sediments and the underlying volcaniclastic deposits.