Lake Barrine is a freshwater lake on the eastern parts of Atherton Tableland in the locality of Lake Barrine, in the Tablelands Region of Far North Queensland, Australia, close to Lake Eacham. The lake and surrounds are protected within the Crater Lakes National Park and are accessible via the Gillies Highway.
The largest of the natural volcanic lakes in the area, Lake Barrine is 730 m above sea level. It is about 1 km in diameter, with a shoreline of almost 4.5 km, an average depth of 35 m and a maximum depth of 65 m. No streams or springs feed the crystal clear lake; it is filled only by rainwater. During the wet season a small creek flows out of the lake. It joins Toohey Creek which is a tributary of the Mulgrave River.
The aquatic environment include a few native species including Speckled_longfin_eel Anguilla Reinhardtii, Bony Bream Nematalosa ereb and the Lake Eacham rainbowfish Melanotaenia eachamensis. Despite being a lake with no rivers or creeks feeding into Lake Barrine the spotted tilapia Tilapia mariae has found its way into the National Park and are now in plague proportions in this freshwater Ecosystem.
