The Mayfly Festival is an event created by the Coos Watershed Association and local partners that is designed to shed light on the connections between community, the environment, and water. This is a free, all-ages, hands-on celebration of watershed ecology and interconnectedness through activities, games, live music, science, and art.

Check here for updates on the 2024 festival. In the meantime, you can download the Mayfly Festival Activity Booklet any time and check out the poster and photos from past years!

If you are interested in sponsoring the 2024 event, donating a raffle item, or volunteering, fill out the forms above or contact acarleton@cooswatershed.org.