Transcript 1. dia - QSL.net

Thermal Lake
of Heviz,
Hungary
(Hévíz Spa)
Photographed by
Ivan Szedo
The Thermal Lake of Hévíz is the world’s largest biologically active natural thermal lake. It
is located in a unique setting, a mere 6 km from the Lake Balaton, 198 km from Vienna
and 193 km from Budapest.
The lake’s formation goes back to ancient times. At the end of the Pannon-era (named
after its sea), volcanoes broke up the layout of the Trans-Danube region. The first signs of
volcanic activity were the heat sources, as was the eruption of Ancient ‘hévíz’ (i.e. ‘hot
water/source’). Two systems of dikes were formed by the movement of the Earth crust in
which precipitation was collected. This is how Lake Balaton was formed 22 thousand
years ago, the time that marked the beginning of the Hévíz thermal lake’s history. The
heat coming from the deeper layers of the Earth crust heats the waters locked inside the
underground deposits, which means that the lake is also heated by geometric energies.
The 4,4 ha water surface lake's source rich in minerals can be found 38 m deep in the
cave, where tens of thousands of years old warm and cool karst waters are mixed.
The lake’s exact depth did not use to be known, but authentic data shows that it is 38.5 m
deep. Hévíz bathers have experienced that the water’s depth varies between 150 and
200 cm. You can stand up around the edges and sink thigh-deep into the softened and
healing turf mud .
The 3,8 ha lake Echo of New Zealand is second largest after Hévíz in terms of size,
however it is unsuitable for bathing due to its water temperature (50-55 C).
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The wildlife of Hévíz thermal lake is unique due to its temperature and unique chemical
composition. Some of the interesting wildlife and botanic species of Hungary can only be
found in their natural habitat here. Algae, weeds (especially blue algae), sulphur bacteria,
actynomycetales and agricultural weed. The micro-organisms and metabolism products
of the water and mud contribute significantly to the healing force of the lake. The various
strains of bacteria provide antibiotic and antiseptic effects. The most spectacular
members of botanic life are water lilies. The native white water lily (Nymphaea alba) subspecies has been pushed out of the lake by today but still lives in the drains in large
populations. Red water lilies (Nymphaea rubra var. longiflora) were planted between
1898 and 1906 by Sándor Lovassy, a teacher at the Academy of Economics of Keszthely.
He experimented with the plantation of a number of species, but only the red water lily
was viable. The lake has become a true home to this species since then.Water lily is a
protected species of the lake, therefore they must not be disturbed and their flowers must
not be broken off.
The lake also has a versatile wildlife,, from tiny single cell organisms to vertebrates can all
be found here.
Water snails and fish live on plankton crabs, dragonflies and leaf and flower bugs as well
as different moths water cleaning rotifers.
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Hotel Carbona
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My other slideshows: (click)
http://iszedo.eu/keptar.htm
Equipment: Sony DSLR A900 + Minolta AF 24-85/3.5-4.5 and Minolta
AF 70-210/3.5-4.5 lens
The
Photographer:
E-mail me!
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