As an arts patron and piano teacher in her early 60s from one of Hobart's wealthiest suburbs, Brenda Hean was an unlikely environmental activist.
But the avid bushwalker was captivated by the distinctive pink quartzite beach at Lake Pedder in Tasmania's south-west and was outraged by the Tasmanian government's plans to flood it for hydro-electricity generation in the late 1960s and early 1970s.
Brenda Hean's fight to save Lake Pedder would ultimately lead to her mysterious disappearance but, 50 years on, the campaign for the lake is taking off again.
