Lake Elizabeth, Man-made lake in Central Park, Fremont, California, USA

Lake Elizabeth is a man-made lake of 83 acres (34 ha) in Fremont's Central Park, with a 2-mile (3.2 km) walkway around it and an average depth of about 7 feet (2.1 m). Duck Island lies in the eastern part of the lake, and Mission Creek enters on the southern shore.

Lake Elizabeth and the surrounding Central Park were dedicated on March 22, 1969, to Fremont's sister city, Elizabeth, South Australia, which gave the lake its name. Development of the park and lake had begun in 1960. Between 2009 and 2012 a 1.25-mile cut-and-cover tunnel was built beneath the lake for the Warm Springs BART extension, at a cost of $137 million; trains used it from March 2017.

The lake's name honors Fremont's sister city, Elizabeth, South Australia, at the dedication of the lake and Central Park on March 22, 1969. A sign at the lake explains that geese fly here from Canada, and the northern forest and Duck Island draw unusual birds. Fishing is free, with sunfish, trout, catfish and largemouth bass.

A 2-mile (3.2 km) paved walkway circles the lake, used for walking, jogging and cycling. The Aqua Adventure water park sits on the southern shore, and Mission Creek enters the lake there. Fishing is free, with sunfish, trout, catfish and largemouth bass caught. Duck Island, in the eastern part of the lake, cannot be reached on foot.

A 1.25-mile cut-and-cover tunnel for the Warm Springs BART extension runs beneath the lake and Central Park, built from 2009 to 2012 at a cost of $137 million; trains only began using it in March 2017.