Swimming, Fitness, Cardio, Classes & More! The Montachusett Community Branch YMCA is your choice for wellness. The Y is the leading nonprofit committed to strengthening community by connecting all people to their potential, purpose and each other. Working locally, we focus on empowering young people, improving health and well-being, and inspiring action in and across communities. By bringing together people from different backgrounds, perspectives and generations, we ensure that we all have access to the opportunities, relationships and resources necessary to learn, grow, and thrive.