This photo is of the large also very pretty pool, up to 14 metres deep, at Dalhousie which is a very warm 35-38C - it is like getting into a warm bath - it is just delicious.
Dalhousie Springs is like a large upside down shower, discharging water from the Great Artesian Basin through approximately 80 holes called mound springs. Water from Qld and the NT soaks underground and travels here slowly under layers of hard rock. The high temperatures of the earth's core heat the waters of the Great Artesian Basin.
This is the downside at Dalhousie - the flies. We called this the Dalhousie reading room. The amenities block is nicely shaded and a pleasant place to sit. Please note the essential mosquito netting for the flies not mosquitos.