[3] Lake Eacham (Yidyam) was formed over 9,130 years ago[4] when molten magma from the Earth's mantle rose to the surface and heated the water table.

The steam that resulted from the boiling water was trapped underground, until massive explosions signalled its release.

Huge cracks appeared in the ground and the trees that once lathed the mountainside were levelled and burnt.

Eventually, after the eruptions, groundwater filled the crater and the trees grew back, creating the tranquil lake used today by families and tourists for recreation.

There are no streams that flow into or out the lake, water is only lost through soakage and evaporation and only replenished through rainfall, the level can fluctuate up to 4 metres between wet and dry seasons.

Then the sky turned orange, then all these people back at the camp, the earth went from underneath them, sucked them in, whoosh, they all got drowned.

[9] Aquarists had been collecting the fish from the Lake Eacham National Park (illegally) and were very successful at breeding them.

However, the cause of the species' initial demise was still living in the lake and proceeded to deplete the entire population of reintroduced stock.

[9] In addition to the rainbowfish, Lake Eacham has two native fish species: The gudgeon Mogurnda adspersa and the hardyhead Craterocephalus stercusmuscarum.