Crater Lakes National Park, Nature reserve in Tablelands Regional, Australia

Crater Lakes National Park features two water-filled volcanic craters surrounded by rainforest vegetation and volcanic rock formations. Walking trails of varying difficulty wind through the park, connecting viewpoints and allowing visitors to experience both the aquatic and forest environments.

Queensland declared Lake Barrine National Park and Lake Eacham National Park separately in 1934. In 1988 UNESCO listed the Wet Tropics of Queensland as a World Heritage Site, covering 484 hectares at Lake Barrine and 505 hectares at Lake Eacham. The two parks were merged in 1994 to form Crater Lakes National Park.

Lake Eacham is also called Yidyam, a name recorded for the lake. The crater lakes lie in the Atherton Tableland about 60 km south of Cairns, near Yungaburra, and are visited for walking, swimming and picnics at the designated areas around each lake.

Both lakes have designated picnic areas with shaded tables, drinking water and toilets; Lake Eacham also has gas barbecues. Walking trails circle each lake, and self-catering huts are available near the lakes, with other accommodation in Mareeba and Yungaburra. The nearest town is Yungaburra, about 60 km south of Cairns.

Lake Eacham once held Melanotaenia eachamensis, a rainbowfish found only in that lake; it disappeared from the water by the mid-1980s and survived through captive breeding. The park also shelters the amethyst python, Australia's largest snake at 3 to 5 metres, and the southern angle-headed dragon, Hypsilurus boydii.