Over the last twenty years, freediving has developed considerably, inclu- ding in areas far from the sea. This practice seems ambivalent, between the quest for performance, surpassing oneself, mastering the aquatic environment, and the search for an "oasis of deceleration", of connection to one's body and to the aquatic environment. This article looks at contemporary freediving practices through the frame of the sociology of resonance developed by Hartmut Rosa. Data from three years of fieldwork in a freediving club in the Grand Est region of France is used. The article, which is half speculative, half empirical, explores the conditions of relations of alienation, but above all of resonance with the world, through the axes of resonance constructed by Rosa: “diagonal" axis of the relationship with aquatic water and sporting objects, the "horizontal" axis of the relationship with others, the "vertical" axis of the relationship with Nature, to which is added the intimate and transversal axis of the relationship with one's own body. The dialectic between alie- nation and resonance is constant, whatever the axis considered. Finally, the article suggests a disposition to resonance that should be cultivated. Mots clés : freediving, resonance, aquatic environment, body sensations, Rosa.