А вот тут у него нет утяжелителей http://www.iyihaberler.net/dunya/tek-nefesle-dunyanin-en-derin-havuzuna-daldi/ но в своем блоге он пишет, что This video is a FICTION and an ARTISTIC PROJECT, I don't claim to have reached the bottom of the hole (202m) without rope and fins, as the world record in no-fins discipline is 95m. We made this movie to show another approach in freediving videos. We wanted to express the strenght of the elements water-earth-air and the sensations of freedom, harmony, exploration.