Larch, European spruce, Swiss pine and silver fir, these are the trees you will find in woods on the valley floor. At higher altitudes, first there are alpine meadows, which are carpeted with flowers in spring, and then these give way to rocks and glaciers. The main animals populating our valley are the Alpine ibex (the Park's symbol – the population numbers around 3,500), the chamois (numbering around 7,000), marmot, fox, lynx, stoat, golden eagle and, in recent years, the lammergeier and wolf. There are also numerous species of birds: buzzard, woodpecker, titmouse, ptarmigan, Alpine chough, sparrowhawk, goshawk, tawny owl, little owl. In the lakes and torrents there are two species of trout: one native, the brown trout, the other introduced, the salmon trout.

The Giardino Alpino Paradisia is a truly unique garden, hovering at 1700 m above sea level in the Grand Paradiso National Park.

Cogne Valley offers endless opportunities for walks and excursions to suit every taste and degree of difficulty.

The Lillaz waterfalls are only an easy 10-minute walk from the hamlet of Lillaz (part of Cogne municipality) and are by far the most attractive ones in Valle d'Aosta. These waterfalls, which ice over in winter but are very powerful in summer, are fed by the abundant waters of the Urtier torrent and cover a drop of 150 metres in three long rocky falls. There are also splendid views over the Valleile valley, dominated by its own and the Sengie glaciers.