Oahu Shark Dive. Book the Oahu Shark Dive to enjoy a thrilling encounter with sharks! Cruise from Oahu's beautiful North Shore to your viewing spot, where you'll observe the ocean's top predators up close from a secure underwater shark cage. Your expert crew will ensure a safe and enjoyable experience for everyone on board, whether you wish to enter the cage or view the sharks from the boat. Book now and Save 7%: Oahu Shark Dive.