[2] It covers an area of 7.5 square kilometres (2.9 sq mi) and has a depth of 5.4 metres (18 ft),[3] and a narrow causeway divides it into two parts.

Its color varies from turquoise to dark emerald depending on the disturbance caused to sediments in the lake by winds.

[4] The shorelines west and east of the lake have different characteristics, with the western and southern shores eroded into volcanoes.

[5] Geothermal heat warms waters that then emerge into Laguna Blanca through springs,[6] the lakes are otherwise fed by snowfall.

[2] In the past, the lake was at least 45 metres (148 ft) higher[5] and larger than today, during the last glacial maximum it merged with neighbouring Laguna Blanca.

[7] Stromatolites of various shapes and sizes occur at Laguna Verde, they cover an area of over 100 square kilometres (39 sq mi) but are inactive today.