- This event has passed.
Santa Ana river
October 4, 2025 @ 9:00 am - 11:00 am
Rid trash from the tall grass and weeds at this month’s Santa Ana River Cleanup. The Santa Ana River has many tributaries that feed into it before it meets the ocean, you can do your part to prevent pollution on a local level. Must wear closed toed shoes and pants. Sign up online for the exact address.