Moreau Catholic High School, home of the Mariners, is a private school located in Hayward, California. MCHS is sponsored by the Moreau Province of the Congregation of the Holy Cross with approximately 925 students and 20 varsity sports teams. Moreau Catholic High School is a compassionate community of caring, dedicated and visionary academic leaders tirelessly committed to transforming our students into game changers. Our inclusive, innovative and personalized approach encourages our students to find their voice and prepares them to confidently take on college and the world.