Next stop Hawaii, the favorite destination of these charming mammals, which arrive at Easter time to reproduce, much to the delight of bio acoustic engineers. Groups of whales criss-cross the passages between the islands. There is often no need to go far out to sea to hear their marvellous sounds. Almost human siren songs, surrealist maritime airs, the whales and dolphins can be heard on this recording expressing the entire spectrum of tonal variations contained in their songs.