| Events | Organization | Description | Information (URL) | Date |
| World Wetlands Day | RAMSAR Convention on Wetlands | Marks the adoption of the Convention on Wetlands (in the Iranian city of Ramsar). Governments, NGOs and citizen groups raise awareness of wetland values and benefits. | World Wetlands Day | February 2, 2022 |
| Fix A Leak Week | US Government / EPA | Annual water awareness campaign sponsored by the EPA every third week of March. | Fix A Leak Week | March 14 – 20, 2022 |
| World Water Day | United Nations | Highlight the importance of freshwater, and advocate for sustainable management of freshwater resources. | UN World Water Day | March 22, 2022 |
| National Volunteer Week | Hands On Network | Time to celebrate people doing extraordinary things through service | National Volunteer Week | April 17-23, 2022 |
| Earth Day | Earth Day Network | World’s largest environmental event. | Earth Day | April 22, 2022 |
| Save The Frogs Day | SAVE THE FROGS! | World’s largest day of amphibian education and conservation action. | Save the Frogs Day | April 30 ,2022 |
| American Wetlands Month | US Government / EPA | AMERICAN WETLANDS MONTH. EPA and partners celebrate importance of wetlands to ecological, economic, social health. | American Wetlands Month | May 2022 |
| National Trails Day | American Hiking Society | Participate in a local hike, bike, horseback ride, maintenance project, etc. | AHS National Trails Day | June 4, 2022 |
| World Environment Day | United Nations Environment Programme (UNEP) | Biggest annual global event for positive environmental action. Annulally on June 5. | WED | June 5, 2022 |
| World Oceans Day | World Oceans Day | Global day of ocean celebration and collaboration for a better future. | World Oceans Day | June 8, 2022 |
| Marin County Fair | Marin County Fair | Booth at Open Space tent. | Marin Fair | June 30 – July 4, 2022 |
| Bike the Watershed | Gallinas Watershed Council | Annual bike ride. | Gallinas Watershed Council | August 2019 |
| California Coastal Cleanup Day (CCD) | CA Coastal Commission | CCD is the highlight of the CA Coastal Commission’s year ’round Adopt-A-Beach program. | CA Coastal Cleanup Day | September 17, 2022 |
| World Water Monitoring Day (EarthEcho Water Challenge) | EarthEcho International | Test stream, lake, bay, wetland water for characteristics: dissolved O2, temperature, turbidity (clarity), pH. Order monitoring kit, register, report. | EarthEcho Water Challenge | Starts March 22 |
| COASTWEEKS | CA Coastal Commission | Three week annual celebration of coastal resources. Kick off on Coastal Cleanup Day, when tens of thousands clean up our coasts and inland waterways. | CoastWeeks | September 21 – October 12, 2019 |
| National Public Lands Day | National Environmental Education Foundation (NEEF) | Nation’s largest volunteer effort to improve public lands. Buiild trails and bridges, remove trash and invasive plants, plant trees, restore water resources. | Largest hands-on volunteer effort | September 24, 2022 |
| Family Volunteer Day | Points of Light | Families volunteer together, supporting neighborhoods and communities. Start of National Family Week. | Family Volunteer Day | November 23, 2019 |