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Lake St Lucia is the largest marine lake in Africa
with a surface of 350 square kilometres and is
connected by the sea in the south by 21km of winding
channels. The average depth of the lake is about
1 metre.
Four major river systems feed the lake with
fresh water while salt water is fed into the lake
at St Lucia village; where the lake meets the
sea some 70 kilometres from the northern extreme
of the lake. This interesting interplay between
salt and fresh water influence the saline levels
in the lake. The salinity varies from zero in
times of floods to three times that of the sea
during droughts. The salinity varies also between
the areas of the lake, from the saline mangrove
swamps the less saline lake reeds.
The lake hosts the largest single population
of Hippo (800) and provides an important nursery
for marine species (like fish and prawns) that
migrate from the sea to the lake to mature.
The lake is bound on its eastern shore by some
of the world's largest vegetated sand dunes and
the grasslands offers rich game viewing opportunities.
The Conservation Park Authority has successfully
introduced elephant and buffalo to the park, and
as it currently stands the Park is only short
of lion.
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