Ji Ya Moon is the Grand Master of JY Moon Taekwondo, located just south of the Cortlandt Train Station on Route 9A. The school has been in business since 1990. Offerings include programs for "Little Tigers" (ages 3–5) and children (ages 6–12) as well as teens and adults. Here, students learn about leadership, discipline, cooperation, self-confidence and self-defense.
JY Moon Taekwondo also has an after-school program and offers transportation from school to the studio. Additionally, there is a full-day summer camp where students learn martial arts as well as leadership and other skills mentioned above. The studio also hosts birthday parties.