Lake Muhlenberg is stocked for fishing and is a refuge for many ducks and Canada geese.

In 2013, the Lehigh Valley Audubon Society installed a 20 feet (6.1 m) tall chimney swift tower on the island.

[3] The tower has insulation panels to prevent the chimney from getting too hot in late spring, which could threaten wildlife living there.

[3] In 2013, the lake was chemically treated and cleaned, removing the overgrown algae and making it more appealing overall.

[4] "Blues, Brews, and Barbeque," which launched in 2014, is held annually at Cedar Beach Park on Lake Muhlenberg.