In 2018, the naturalist and explorer Nacho Dean, decided to embark on the challenge of swimming around the world, linking the five continents to warn about the conservation of the oceans and document the state of marine ecosystems. Since he was not a professional swimmer, he needed more than 2,500 kilometres of swimming training in order to conclude the Nemo Expedition, after 24 months, 5 crossings and 90 hours of...