All La Jolla YMCA Firehouse classes are held at the Firehouse on the corner of Wall and Herschel in the village of La Jolla at 7877 Herschel Avenue. Class specifics are subject to change without notice. Registration is accepted through the first week of the session. However, we are strict about class size limits, and classes do fill. Please register early for best selection. For more information concerning our class size policies, please go to our How to Register page.