A total sensory experience that transports visitors to an underwater world. In addition to sharks and other predators, visitors can watch endangered green sea turtles gently glide through the aquarium. Su-Th, 10 am-8 pm; F-Sa, 10 am-10 pm. Last admission one hour prior to close. $18 adults, $12 children 5-12. www.sharkreef.com. Mandalay Bay, 702.632.4555.