We will leave from El Calafate and travelling 80 km we will arrive at Perito Moreno Glacier, formed 30,000 years ago. The height is 80 meters and the space it covers is 3 km. This is the only glacier in the world that separates two bodies of water (the Argentina Sea from the Rich Sea , both part of Lake Argentino ). This causes a difference in water level, and the tremendous pressure causes the ice to weaken every 4 years so that the water from the Rich Sea penetrates Lake Argentino across the Canal of the Icebergs. This moment of rupture that normally happens in January, is one of the most spectacular impressions of the world. This excursion consists in observing from land at many angles, and each one closer than the one before, the extraordinary spectacular of the glacier, destroyed by Lake Argentino and our observation of the great clunks of ice falling.