The high altitude  lakes in Corsica are of glacier origin, they formed  14,000 years ago and are of varying size and depth.

The majority of lakes are situated between 1700 and 2200 metres altitude. Many of the lakes are surrounded by a sort of turf, called pozzines or pozzi. 

. It’s  a  spongy terrain with small wells and runnels of water that keep moist all summer.  This vegetation is a sign that the lake is getting gradually smaller, due to an accumulation of partially decayed vegetation, or organic matter.

Dotted about the lakes, you find beautiful Sorbier trees, Mountain Ash, easily recognisable with their bright red berries. Another common vegetation you find around the lakes, is thick patches of Alder bush, a lovely fragrant dense covering, which in Corsican, is called ‘U Bassu.’

For centuries, the lakes have been a favourite spot for shepherds and fisherman, added to this, we now have hikers.  Some  walkers try to camp out over night at the lakes which can lead to waste and rubbish building up on the banks.  This in turn causes pollution to the water and is a threat to the pozzis.

It was between 1980 and 1982 that the Corsican park started studying and surveying the lakes, they visited 40  lakes.

The biggest is Monte Rotondo and the deepest is  Capitellu that descends 42 metres.

For the 3 most popular lakes that are easily accessible, Melu, Ninu and Crenu, the park has installed a cabin and employs a guardian to survey the area.  They count the number of walkers, collect the daily  rubbish  and prevent people from camping overnight on the banks.

It was found that there was an average of 900 visitors per day at Melu (some days equalling as many as 1400.)  There are 300 visitors per day at Ninu and 300 visitors per day at Crenu. The figures show what an important economic asset the lakes are.

Written by corsica

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