You can't get any closer to fearsome sharks and huge fish without getting your hair wet. Peer through the world’s largest acrylic panel at Dubai Mall’s huge aquarium and cast your eyes on giant grouper and catfish, huge rays and scary sand tiger sharks with teeth so big, you’ll take a step back from the 750mm-thick glass. Walk through the glass tunnel to see enormous rays glide above you, then head into the Underwater Zoo to see penguins, caiman crocodiles, piranha, giant spider crabs and more. Dhs50-100 for access to aquarium tunnel and underwater zoo. Open Sun-Wed 10am-10pm, Thu-Sat 10am-midnight. The Dubai Mall, Downtown Burj Khalifa (04 448 5200).To see 100 more of our favourite things to do in Dubai, click here.