Coastal Cleanup Day at Castro Valley Creek Trail 2025

Be part of the annual Coastal Cleanup Day at the Castro Valley Creek Trail! Volunteers* will participate in a litter pickup along the creek trail and beautify the trail starting from the Castro Valley Library to Castro Valley Creek Blvd.

Trash from inland areas, like Castro Valley Creek, flows downstream to the coast and into the ocean. Cleaning upstream riparian areas helps prevent garbage from entering the ocean, protecting birds and other marine animals, while beautifying the environment. Yeah!

Volunteers* may also participate in a water testing demonstration to learn about various types of water pollution and their effects on the creek and the ocean.

This effort is part of the statewide Coastal Cleanup Day and is made possible by the Alameda County Flood Control and Water Conservation District and The Alameda County Unincorporated Area Clean Water Program in coordination with Friends of San Lorenzo Creek.

To contribute to the statewide litter count, download the Clean Swell App before you arrive and have your trash be part of the California count!

Questions? Please contact Jennifer Trevis at amVubmlmZXIgISB0cmV2aXMgfCBhY3JjZCAhIG9yZw==

Also check out other Trips & Adventurous Activities in Castro Valley.