Spring has arrived along the Hudson River—at last. After a long winter we are ecstatic about the thought of farmers markets, festivals, shoreline cleanups and the warmth ahead. Read on to find the Top 4 volunteer opportunities this spring and learn how to get involved.

Fresh on the heels of our wildly successful in-person Ambassador Workshops we have developed an exciting webinar for folks who couldn’t join our workshops but who would like to be involved in our rapidly growing Ambassador program. This webinar will train you as a Riverkeeper Ambassador and provide our top tips for engaging your community in clean water advocacy. Sign up for this webinar here.

Together, we are building a grassroots movement for clean water! With the support of volunteers, Riverkeeper will attend 75 community events in 2015 from NYC to Schenectady. Outreach events are a critical opportunity to raise awareness about important issues, activate your community to take action, and build the membership that Riverkeeper depends on. Are you an active Ambassador? Select a leader slot. New volunteer? No problem! Select a volunteer slot. Sign up for an outreach event in your community today!

The Hudson River’s largest cleanup event is gearing up to be bigger, better and in more locations than ever. With over 90 cleanups from NYC to Albany, we are demonstrating the fundamental power of citizens, families and local communities to take back their river. We need your help sharing the excitement on social media, in your religious community, local government and elsewhere. Register to volunteer after April 1 atriverkeeper.org/sweep.

Would you like to collect samples in your tributary this summer as part of Riverkeeper’s water quality monitoring program? Riverkeeper tests for Enterococcus, an indicator of fecal contamination, in partnership with community scientists in the Catskill, Esopus, Rondout, Wallkill, Pocantico and Sparkill watersheds. Samplers commit to collecting water at one or more fixed locations and delivering the sample to the Riverkeeper vessel. We provide training and sampling equipment. We test the water once monthly from May to October; specific dates and times vary by watershed. We also support sampling groups in the Quassaick watershed and the New York City waterfront.

The F.A.O. Schwarz Family Fellowship is a two-year program for recent college graduates designed to train future leaders in the education and youth development field. The Fellow will work with Riverkeeper’s Outreach and Volunteer Programs team to provide both direct service to youth and initiate new projects to strengthen our work. At the same time, the Fellow will receive experiences, training and mentorship to help launch them into successful careers as leaders in the field. Candidates must be recent college graduates (those who graduated in 2014 or will graduate in 2015) who can commit to the full term of the fellowship and be able to begin work by September 8, 2015. Learn more about this exciting opportunity.