This album is divided into two parts: Above the Waves and Below the Waves. On the first part you hear dolphins chirp, call and click. Gradually you move out to deeper water, distant gulls are calling from the mainland. The waves become more powerful. The dolphins continue their calling and sonar clicking. If you listen very carefully you can even hear them using their blow holes. In the second half, the dolphin sounds are heard from the perspective of being just below the surface of the sea. Air bubbles rise and the dolphins are joined by a humpback whale and an orca. The best selling album in this popular Sounds of the Earth series. Contains nature sounds only; no added music or singing.