Also called bioretention basin,
the rain garden here collects, detains and treats rainwater runoff that flows
from the park. The filtered rain water is then further treated and reused in
the water play area and wading stream. Approximately 80m² in size, the
rain garden not only enhances the quality of rainwater runoff, but also promotes
biodiversity. About 10 species of plants have been planted here. Not only that,
the rain garden also serves as a habitat for animals and insects.
The special plants in the garden actually take in excessive nutrients and thus acts as a filter for the water before it is release into the water way. This will curb algae growth and keep the algae clean.

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