Nikolay "Nik" Linder is a German apnea diver. He has set several world records and German records. As a teenager, Nik Linder discovered his enthusiasm for apnea diving, especially for distance diving, through club swimming. As a trainer for apnea diving at a Freiburg diving center, he has continued to work intensively with the sport and has become increasingly professional. Linder works as an author for diving magazines and has published several books. As a freediving expert, Linder travels around the world, trains apnea divers, conducts courses, gives lectures and accompanies freediving events.