Traigh na Bherie © James Smith Uig & Bernera's natural environment is rugged, peaceful and unspoiled. Small villages are dotted around a coastal landscape of breathtaking beauty. The fertile machair lands lining the West Coast become a beautiful carpet of rare and colourful wild flowers in summer. Rock faces teem with sea birds and the seas are home to an abundance of life. Fresh water lochs are dotted across the area - a massive resource for fishermen and birds alike.

The impact of glaciers and ice sheets melting scooped out many of these lochs and caused the sea level to rise dramatically. One of the most spectacular examples of this can be seen at Gleann Bhaltois in Uig, which was formed by a glacial melt water channel. The Glen has been designated a Site of Special Scientific Interest. The ice age is also responsible for the giant flat boulders at Bosta in Bernera.

Most of Uig & Bernera rests upon Lewissian Gneiss, the oldest rock in Europe, and the rock that used to form the basis of the mountains that linked Scotland to Canada and Greenland. By the Bronze Age peat was beginning to form, very little ancient forestry remained and beaches and machair began to build up around the coastal bays where sand and shell was being carried ashore. This "machair," the lime rich soil of the grassland, provides ideal conditions for a host of wild flowers including harebells, gentians, wild orchids, flax, bog bean, iris, milkwort and marsh marigolds.

Cliffs and beaches are home to Fulmars, Shags, Cormorants, Mergansers and Gannets among other bird species. The rare and protected Corncrake can occasionally be heard and very rarely seen. Golden Eagles are often seen soaring over the Uig hills. St Kilda and the Flannan Isles can be seen from the Uig & Bernera coastline on a clear day.