The project also invovled deepening and revitalizing the existing pond. "Designing a pond to be 20 feet deep instead of three feet deep improves the oxygen level and the water quality," Gang explains.  Photo 2 of 4 in Earth Day Inspiration: Prefab Pavilion Celebrates Nature in the Heart of Chicago by Allie Weiss

Earth Day Inspiration: Prefab Pavilion Celebrates Nature in the Heart of Chicago

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The project also invovled deepening and revitalizing the existing pond. "Designing a pond to be 20 feet deep instead of three feet deep improves the oxygen level and the water quality," Gang explains.