HalGLOWeen—the world-famous San Diego Zoo’s light-up-the-night, Halloween-themed extravaganza—is back! This year’s glowing celebration of color has been expanded to five weekends in October—Fridays, Saturdays, and Sundays. So, get ready to enjoy some safe, family fun at this glittering and glimmering annual spectacular full of entertainment and interactive festivities. Ages 11 and younger enter free.