A clear, blue lake surrounded by cool rainforest, Lake Eacham offers swimming, birdwatching, canoeing, picnic areas and shady walking tracks. It is a popular recreation area for locals and visitors. In geological terms, the lake is a maar—a volcanic crater formed by massive explosions from the superheating of groundwater. The crater has filled with water, forming a lake 65m deep. A number of rainforest communities can be seen along the 3km track encircling the lake. Over 180 bird species have been recorded from the rainforest and you may be lucky enough to see one of the few species of marsupial active during daytime—the small musky rat-kangaroo.