A wonderful sea voyage through the beautiful Seychelles archipelago, situated in the eastern part of the Indian Ocean. An expedition sails forth from Mahè, the capital of the Seychelles, to explore this unique archipelago. The granite islands provide one of the most incomparable underwater landscapes on earth, because of both their morphology and biodiversity. Among the rocks that cover the seabed there is plenty of life: moray eels, stone bass, and an incredible variety of micro-organisms. The images of the Aride Island Nature Reserve and the wonderful oceanic landscapes, with their creatures both great and small, are the real protagonists of this documentary.