Denny's 731 W San Marcos Blvd 5:00 AM - 12:00 AM 5:00 AM - 12:00 AM 5:00 AM - 12:00 AM 5:00 AM - 12:00 AM 5:00 AM - 1:00 AM 5:00 AM - 1:00 AM 5:00 AM - 12:00 AM731 W San Marcos Blvd San Marcos, CA 92069 US