$29 for Sharks After Dark admission for two adults and one guidebook ($43 value)
Sea Life Arizona Aquarium
The scenes inside Sea Life's tanks are like a Where's Waldo? book come to life, except the protagonists within the underwater tableau aren't awkwardly dressed like candy canes. Thousands of fish swirl through the waters, and you could easily spend hours picking out specific species.
Seahorses, on the other hand, swim in open view. So does other marine life—especially once you enter the ocean tunnel, which simulates the experience of walking across the ocean floor. Blacktip reef sharks roam overhead and flash their menacing teeth at the cownose stingrays, who appear to smile back.
The aquarium's more interactive attractions explain what makes undersea life so appealing. At the touchpool, for instance, education hosts explain the lives of coastal creatures, letting visitors touch everything in the exhibit, including sea stars and hermit crabs.
Even though Sea Life spans 20 displays and thousands of sea creatures, only so many creatures can call the aquarium home. To help marine life outside its walls, Sea Life runs and participates in many different conservation campaigns and programs. Sea Life aquarium rescues seals, finds permanent homes for disabled sea turtles, and breeds seahorses to protect these endangered species from extinction.