Lake Ginninderra, reservoir in Belconnen, Canberra, Australia

Lake Ginninderra is a reservoir formed by the Ginninderra Dam, an earth-filled embankment 17 metres high and 365 metres long across Ginninderra Creek, next to the Belconnen Town Centre in Canberra. When full it holds 3,700 megalitres, covers 105 hectares and averages 3.5 metres deep. The embankment was raised by one metre in 2004.

The water body was created in 1974 by damming Ginninderra Creek to capture stormwater from surrounding suburbs. In 2004, the embankment was raised by one meter to improve flood safety and enhance water management across the region.

The lake's name comes from Ginninderra Creek, which it dams; the Belconnen Arts Centre and the Lake Ginninderra Sea Scouts both sit on the southern shore. Visitors can watch black swans, moorhens, ducks and the native rakali, a large water rat, along the water's edge.

The loop trail circling the water is well maintained and relatively flat, making it accessible for people of all fitness levels. Bring water and wear casual clothing; early mornings and late afternoons offer the most comfortable conditions.

The 2004 raising of the Ginninderra Drive embankment by one metre was meant to guard against a flood expected once in a million years, a measure whose value is disputed: the road sits almost 8 m above the water, and the lake has never risen more than 30 cm. The southern shore holds the Belconnen Arts Centre and the Lake Ginninderra Sea Scouts.