Our Cause At the Y, strengthening community is our cause. Every day we work side-by-side with our neighbors to make sure that everyone, regardless of age, income or background, has the opportunity to learn and grow. Who We Are The Y is the nation’s leading nonprofit committed to strengthening communities through youth development, healthy living and social responsibility. YMCA SOUTHCOAST’S Mission: The improvement of the spiritual, mental, social, educational and physical conditions of all persons. YMCA SOUTHCOAST History YMCA SOUTHCOAST has been working to provide health and social services to thousands of youth, families and individuals throughout the Southcoast region for nearly 150 years.