Give me five

A large shark swims vertically in the blue ocean water next to a metal cage, its body rising and falling as it interacts with a diver inside the cage. The diver, wearing a wetsuit and scuba gear, extends an arm and touches the shark's pectoral fin, causing the shark to move slightly upward and then downward in a continuous, gentle motion. Small fish swim in the background, and bubbles rise from the diver's equipment.