COASTWEEKS is an annual celebration of our coastal and water resources, kicked off by California Coastal Cleanup Day on September 16th when tens of thousands of Californians will come together to keep our coasts and inland waterways free of debris.

Below you will find a calendar of events collected from throughout California to help you celebrate COASTWEEKS. The majority of these events are free. Please contact the host organizations for more information and to confirm the details. To add your event to the calendar, please send details by email. This calendar is growing, so check back often!

Have fun, and enjoy our Coast and Waterways!

The list below is organized by county, with events listed by date within each county. Switch to a list organized statewide by date.

Inclusion in this calendar does not necessarily indicate Coastal Commission support of the policies or programs of the organizations, which are independently responsible for their events.

View events taking place in the following counties:

Statewide     Alameda
Alpine
Amador
Butte
Calaveras
Colusa
Contra Costa    
Del Norte
El Dorado
Fresno
Glenn
Humboldt
Imperial
Inyo
Kern
Kings
Lake
Lassen
Los Angeles
Madera
Marin
Mariposa
Mendocino
Modoc
Mono
Monterey
Napa
Nevada
Orange
Placer
Plumas
Riverside
Sacramento
San Benito
San Bernardino    
San Diego
San Francisco
San Joaquin
San Luis Obispo
San Mateo
Santa Barbara    
Santa Clara
Santa Cruz
Shasta
Sierra
Siskiyou
Solano
Sonoma
Stanislaus
Tulare
Tuolumne
Ventura
Yolo
Yuba


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Coastal Cleanup Day volunteers smiling for photo

Statewide

Saturday, September 16
California Coastal Cleanup Day!

Coastal Cleanup Day will take place at over 900 sites all over California! You're sure to find a location near you. Join your friends and neighbors for the largest volunteer event in California


Photo of man fishing in river, by Alpine County Chamber of Commerce
Photo: Alpine County Chamber of Commerce

Alpine County

Saturday, September 16

Saturday, October 7

Sunday, October 8

Photo of rafter on Mokolumne River, by Amador Council of Tourism
Photo: Amador Council of Tourism

Amador County

Saturday, September 16

Sunday, September 24

Photo of Lake Oroville
Photo: California State Parks

Butte County

Saturday, September 16

Thursday, September 21

Saturday, September 23

Thursday, September 28

Thursday, October 5

Photo of father and daughter paddling New Hogan Lake
Photo: US Army Corps of Engineers

Calaveras County

Saturday, September 16

Photo of a black-crowned Night-Herons, by Mike Peters, Colusa National Wildlife Refuge
Photo: Mike Peters, Colusa National Wildlife Refuge

Colusa County

Saturday, September 16

Photo of a north coast beach at sunset, by Charlotte Gibb
Photo: Charlotte Gibb

Del Norte County

Saturday, September 16

Sunday, September 17

Saturday, September 30

Photo of Emerald Bay
Photo: California State Parks
Photo of volunteers removing tires from the river by boat
Cleanup day at the river

Fresno County

Saturday, September 16

Tuesday, October 3

Photo: Mike Peters, Sacramento National Wildlife Refuge

Glenn County

Saturday, September 30

Photo of white pelican catching a fish at Salton Sea SRA
Photo: California State Parks

Imperial County

Saturday, September 16

Photo of birders at Owens Lake, by Friends of the Inyo
Photo: Friends of the Inyo

Inyo County

Saturday, September 16

Saturday, October 7

Photo of Kern River, courtesy Kern River Conservancy
Photo: Kern River Conservancy

Kern County

Saturday, September 16

Kids in canoe
Photo: Environmental Health Institute

Kings County

Saturday, September 16

Photo of bikers on road next to lake, by Lake County Marketing & Economic Development
Photo: Lake County Marketing & Economic Development
Photo of Silver Lake, by NPS
Photo: NPS

Lassen County

Saturday, September 16

Photo of Lifeguard tower at Santa Monica beach, by Sarote Tabcum Jr.
Photo: Sarote Tabcum Jr.

Los Angeles County

Saturday, September 16

Sunday, September 17

Saturday, September 23

Sunday, September 24

Monday, September 25

Wednesday, September 27

Saturday, September 30

Sunday, October 1

Tuesday, October 3

Thursday, October 5

Friday, October 6

Saturday, October 7

Sunday, October 8

Photo of family fishing at Hensley Lake, by US Army Corps of Engineers
Photo: US Army Corps of Engineers

Madera County

Saturday, September 16

Saturday, September 30

Photo of a tule elk in Point Reyes, by Vincent James
Photo: Vincent James

Marin County

Saturday, September 16

Sunday, September 17

Monday, September 18

Tuesday, September 19

Wednesday, September 20

Friday, September 22

Saturday, September 23

Sunday, September 24

Monday, September 25

Tuesday, September 26

Wednesday, September 27

Friday, September 29

Saturday, September 30

Sunday, October 1

Monday, October 2

Tuesday, October 3

Wednesday, October 4

Friday, October 6

Saturday, October 7

Sunday, October 8

Photo of Lake McClure, by Merced Irrigation District
Photo: Merced Irrigation District

Mariposa County

Saturday, September 16

Photo of taggedpelican at Clear Lake National Wildlife Refuge
Photo: Clear Lake National Wildlife Refuge

Modoc County

Saturday, September 16

Photo of Mono Lake reflecting the sky

Mono County

Saturday, September 16

Sunday, September 17

Saturday, September 23

Sunday, September 24

Saturday, September 30

Sunday, October 1

Saturday, October 7

Sunday, October 8

Photo of Lake Berryessa at sunset, by Bureau of Reclamation
Photo: Bureau of Reclamation

Napa County

Saturday, September 16

Photo of Spaulding Lake, by Nic Enstice - Sierra Nevada Conservancy
Photo: Nic Enstice - Sierra Nevada Conservancy

Nevada County

Saturday, September 16

Photo of river by Placer County Visitors Bureau
Photo: Placer County Visitors Bureau

Placer County

Saturday, September 16

Photo of man fishing in river, by Plumas County Tourism Council
Photo: Plumas County Tourism Council

Plumas County

Saturday, September 16

Friday, September 22

Saturday, September 23

Sunday, September 24

Photo: Riverside County

Riverside County

Saturday, September 16

Saturday, September 23

Photo of American River, by Rob Thompson, American River Parkway Foundation
Photo: Rob Thompson, American River Parkway Foundation
Photo of Hernandez Valley Reservoir, by Bureau of Land Management
Photo: Bureau of Land Management

San Benito County

Saturday, September 16

Photo of man fishing in Big Bear Lake, by San Bernardino National Forest
Photo: San Bernardino National Forest

San Bernardino County

Saturday, September 16

Photo of a surfer at sunset on San Elijo State Beach, by Mike Reardon
Photo: Mike Reardon

San Diego County

Saturday, September 16

Sunday, September 17

Monday, September 18

Thursday, September 21

Saturday, September 23

Sunday, September 24

Monday, September 25

Thursday, September 28

Saturday, September 30

Sunday, October 1

Monday, October 2

Thursday, October 5

Saturday, October 7

Sunday, October 8

Photo of kayakers in Lodi Lake, by City of Lodi
Photo: City of Lodi

San Joaquin County

Saturday, September 16

Saturday, September 30

Photo of sand dunes at Morro Bay, by Jerry Cowart
Photo: Jerry Cowart

San Luis Obispo County

Saturday, September 16

Sunday, September 17

Tuesday, September 26

Thursday, September 28

Friday, September 29

Saturday, September 30

Photo of American Avocet chicks newly hatched, by Bryan White, Don Edwards San Francisco Bay NWR
Photo: Bryan White, Don Edwards San Francisco Bay NWR
Photo of Sand Pond and the Sierra Buttes, by Sierra County
Photo: Sierra County

Sierra County

Saturday, September 16

Photo of Tule Lake Refuge looking at Mt Shasta, by Tule Lake National Wildlife Refuge
Photo: Tule Lake National Wildlife Refuge

Siskiyou County

Saturday, September 16

Photo of a birdwatching group, by San Joaquin River National Wildlife Refuge
Photo: San Joaquin River National Wildlife Refuge

Stanislaus County

Saturday, September 16

Photo of Success Lake in Tulare County
Photo: Michael J. Nevins, US Army Corps of Engineers
Photo of Yellowhammer Creek in the Emigrant Wilderness, by USFS Region 5, Lisa DeHart
Photo: USFS Region 5, Lisa DeHart

Tuolumne County

Saturday, September 16

Photo of volunteers at a creek cleanup
Photo: California Department of Fish & Wildlife

Yolo County

Saturday, September 16

Thursday, September 21

Saturday, September 23

Saturday, October 7

Photo of scouts at a cleanup

Yuba County

Saturday, September 16