Lake Torrens Lake Torrens. The full extent of Lake Torrens has been protected as a national park under the "National Parks and Wildlife Act 1972" since 1991. Lake Torrens is part of an area known as the "Inland Saline Lakes" which has been listed in the Directory of Important Wetlands in Australia since at least 1995. Lake Torrens has been identified by BirdLife International as an Important Bird Area known as the "Lake Torrens Important Bird Area" (IBA) because it supported up to 100,000 breeding banded stilts during the major filling event of 1989. It may occasionally support over 1% of the
River Torrens Park through which the creek flows. First, Second and Third Creeks have been particularly heavily modified. Some sections have been converted to concrete channels; others run through landscaped private gardens and some run in underground pipes. Much of the original vegetation has disappeared from the creeks, particularly those closest to the city. Introduced species including Olives, bamboo, boxthorn, watsonia and blackberries have displaced native flora. The largest catchment of the Torrens is Sixth Creek in the Adelaide Hills, which joins the Torrens at Castambul on Gorge Road. At the time of European settlement the river was a summertime chain of