Listen to Unfathomable Water online. Unfathomable Water is an English language song and is sung by Oasis de Détente et Relaxation. Unfathomable Water, from the album Mes moments Relax (Soft Songs and Melodies for Relaxation, Concentration and Studying), was released in the year 2014. The duration of the song is 4:32. Download English songs online from JioSaavn.