A team of divers, police and paramedics has descended on the small town of Daniëlskuil in the Northern Cape to recover a body. Located 30km from Daniëlskuil is Boesmansgat — the world’s third-deepest freshwater cave. In 1994, while diving in the cave with his father, Deon Dreyer, then 20, blacked out and sank to the bottom.