Home to more than 3,700 rare and endangered animals, the San Diego Zoo is a must-see for those visiting Southern California. Its sprawling 100 acres boast over 650 different species and subspecies as well as a prominent botanical collection of more than 700,000 exotic plants. Located just north of downtown, this popular attraction even houses a protected habitat, allowing various animals to roam among their native species' environment. Expect to see some of your animal kingdom favorites, including giant pandas, snow leopards, elephants, polar bears, and flamingoes. And now, visitors to this urban paradise will get the chance of a lifetime to view the zoo in a much different light during its bimonthly "Twilight Trek." With availability on the second-to-last and very last Fridays of each month, this special after-hours program allows you and your family to learn insider information about the zoo's nocturnal animals as you walk through the various animal enclosures. Each month highlights a different theme, allowing you to ask questions and hear personal stories from the zoo's expert educators. Dates for this winter and spring include January 31, February 21 and 28, March 21 and 28, April 18 and 25, and May 23 and 30. The 90-minute tour attracts groups of all ages, including adults, teens, and tweens, so everyone from your big kid to your little one will remain enthralled in this compelling adventure. It's the perfect chance for you to view just what the San Diego Zoo's animals do after dark for only $16 per person plus admission.