The rain garden also called bio retention basin. It collects, detains and treats rainwater runoff that flows from the park. The filtered rainwater is then further treated and reused in the water play area and wading stream. Therefore, they are known as “natural filters” as they absorb nutrients like phosphates and nitrates from the rainwater before channelling the water to the reservoir, thus prevent growth of algae in the water. We feel that it is an excellent method to curb the growth of algae and also beautify the environment. Approximately 80m2 in size, the rain garden not only enhances the quality of rainwater runoff, but also promotes biodiversity.There are about 10 species of plants.. It is a small habitat for insects and animals. However, we were not able to see these creatures due to the dry weather in Singapore, but according to our seniors, they saw Grey Pansy Butterfly, Little Heron etcetera.
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