Lake Wilkie is a small, scenic lake near Tautuku Bay in the Catlins, south of Dunedin, New Zealand. It formed after the last ice age and has gradually shrunk to its current size of 1.7 hectares (4.2 acres). Bog lakes like Lake Wilkie are a rare ecosystem in this part of the country.FormationLake Wilkie was formed after the most recent ice age about 13,000 years ago. Trapped towards the coast by a small cliff, water accumulated in a depression between ancient sand dunes. Originally, the lake was much larger and is slowly being filled in and reclaimed by the vegetation around it. Today, the lake is very shallow and its water colored brownish by organic acids released by the peaty soils.Fauna and floraThe lake is home to only microscopic plankton and small invertebrates such as mites, molluscs, water boatman and worms. No fish have been found in the lake; although native galaxias are a possibility. The introduced whistling tree frog is common around the lake's edges. A cafe 7km along the road west from Lake Wilkie shares the same name of "The Whistling Frog Cafe & Bar".Birds common in the forest around the lake include kereru, tui, silvereye, fantail, bellbird, brown creeper and grey warbler. Fernbirds and ducks from the nearby Tautuku Estuary regularly visit Lake Wilkie.
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