The Koko Head District Park Rain Garden is being restored!

Rain gardens are one of many practices designed to treat polluted stormwater runoff. The Koko Head Rain Garden does this using a retention basin to hold incoming stormwater from the parking lots and native plants to filter pollutants. Rain gardens also reduce flooding by absorbing rainwater from hard surfaces and recharge natural groundwater aquifers by allowing water to soak into the ground. Many of the pollutants being filtered out would otherwise be released into Maunalua Bay.

Mālama Maunalua will be hosting a work day to restore the Koko Head District Park Rain Garden tentatively on Sunday, November 28th, 2021 from 9am - 12pm, and we need your help! Volunteers will help plant native trees and shrubs and bring the rain garden back to life. Come out and plant a tree in honor of National Arbor Day! If you want to volunteer please email Alex Awo at
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