Enjoy reading the DA's draft estuary plan, see link below.
https://wc.da.org.za/2022/09/draft-estuary-plan-a-step-in-the-right-direction-for-milnerton-lagoon-pollution?fbclid=IwAR0wEaKQ1A9l4nPTFaJagb_FkYH3Q15uew_SB0X98ztWE3yURsztc7F63_s