Our attention spans are shorter than ever so in order to get noticed, sometimes you have to do something that really makes a splash. Enter Karina Oliani, a Brazilian TV personality whose diving photos are the definition of “wow” factor. A doctor with a specialization in wilderness medicine, she has a thirst for adrenaline that has taken her up Everest (twice!) She’s also put on designer dresses and done a four-hour underwater photoshoot surrounded by sharks to raise awareness about humans illegally killing them. Next up: a photoshoot to take on plastic.