The elusive ‘Disappearing Tarn’ has reappeared in the foothills of kunanyi/Mount Wellington this week after recent heavy rains soaked southern Tasmania.
Filled with freezing cold but clear blue water, the aptly named Tarn only appears briefly after substantial rainfall before draining away.
It typically forms when more than 60mm of rain falls over several consecutive days, in the snow or sunshine.
Wellington Park Management is advising those considering a visit to the Tarn to stay out of the water, as tempting as it may be to jump in.
“The Disappearing Tarn is located in a Drinking Water Catchment, just 400m from an intake,” management said.
“This water receives the bare minimum treatment before it is delivered to the taps of Fern Tree residents.”
They said swimming or “inappropriate toileting” around the Tarn is impacting water quality for residents downhill.
“Please respect this important water source.”
‘No Swimming’ signs have been erected, with violators to face a maximum fine of just over $4,000.
Fern Tree tap water often ranks among the country’s best and was named Tasmania’s top drop for two years in a row in 2023.
Those venturing to see the rare natural pool, popular on social media, are also being advised to be prepared, as emergency services have had to rescue adventurers who became lost in recent years.
