Vacations on Instagram: "@themepark_explorers showing us this underwater walking tour in the world's biggest marine aquarium 🤿🦈 . You slowly descend beneath the surface and come eye to eye with sharks, rays and many fish. No divers experience required: if you can walk and breathe, you can do SeaVenture. Located at SeaWorld Abu Dhabi 🐠 . Video by: @themepark_explorers"

Hadrien Foucher | Scuba Diving on Instagram: "One of the most surprising things about nurse sharks is how they see. Their eyes are small and placed high on the head. At first, you might think their vision is limited, but nurse sharks actually have very strong night vision. They are most active after sunset, and their eyes are adapted to low light, helping them hunt for fish, crustaceans and octopuses in dark spaces. They also have a special feature called the nictitating membrane. It works like