COASTWEEKS is an annual celebration of our coastal and water resources, launched by California Coastal Cleanup Day on September 17th 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 date. Switch to a list organized by location.

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.

Skip to: September 17 | September 24 | October 1

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Photo of winter sunset through rock arch Pfeiffer Beach, by R Goldthwaite
Photo: R Goldthwaite

Saturday, September 17

Sunday, September 18

Monday, September 19

Tuesday, September 20

Wednesday, September 21

Thursday, September 22

Friday, September 23

Photo of children playing at Muir Beach, by Margaret Prokurat
Photo: Margaret Prokurat

Saturday, September 24

Sunday, September 25

Monday, September 27

Tuesday, September 27

Wednesday, September 28

Thursday, September 29

Friday, September 30

Photo of habitat restoration volunteers at Upper Newport Bay

Saturday, October 1

Sunday, October 2

Monday, October 3

Tuesday, October 4

Wednesday, October 5

Thursday, October 6

Friday, October 7

Saturday, October 8

Sunday, October 9