For record-setting Russian free diver Natalia Molchanova, plunging headfirst into 100 feet of water with a weight tied around her neck could hardly have seemed like a daunting task. According to the Times, she is also the only female diver ever to plunge deeper than 100 meters (about 328 feet), which she did at the world championship in Greece in 2013, the same year her son, Alexey Molchanov, set a men’s depth record at 128 meters (about 420 feet).