Plunging into the ocean depths will give you a new perspective on the planet—and make you fall in love with sharks. A scuba diver explores a cave inside Casa Cenote on Mexico’s Yucatán Peninsula. The ...
Scuba diving has captured the imaginations of millions worldwide, from casual holidaymakers to devoted enthusiasts. In the United States alone, there are an estimated 0.6–3.5 million certified divers.