In Greece you can find more than 8.500 natural caves, subterranean and underwater, were created as a result of the country's rich geological structure and history, formed both on the mainland and on the islands. Many of them are still unexplored until now.

Sea caves are one of the most numerous types of caves and are formed by the power of waves attacking zones of weakness in coastal sea cliffs (usually a fault or a fractured zone). Sea caves can be found along coastal oceanic areas, on islands or cliffs found surrounding fresh water lakes. Sea caves can be formed in many types of rock such as sandstone and limestone. Sea caves rarely have formations inside of them   New Greek Diving Law On 18th October the Greek Parliament voted for a new law diving in Greece. This new law remove the main obstacles in the way of the development of the diving business and diving tourism in Greece.

Diving will be allowed throughout the country except from some specific areas and conditions.

This law makes it possible for PADI to be recognized as a training organization in Greece and makes it possible for all PADI Instructors and Dive masters to work legally in Greece.

History of Diving

The men and the women from an antiquity practiced to plunge time-lagged respirations. In ancient Greece the divers dived for sponges, and also participated in military operations. The most known historical fact has reached us due to the historian Herodotus. During marine campaign one Greek man, named Scyllis was captured and was taken aboard by Persian king Xerxes I-st.  When Scyllis has understood, that the Persian king is agglomerated to attack the Greek flotilia, he has seized a knife and jumped off over the side of the ship. Persian peoples could not find him behind a side and decided he had drowned. Scyllis emerged at the night and floated between the flotilla of Pesian ships, cutting the anchors and ropes of all these ships. To be unnoticed underwater, he utilized an empty stem. Then he has swum 13 kilometers and reunited with the Greek forces.

The desire to dive under water has always existed. It needed for: hunting underwater for getting food, repairing of the ships or destroying the enemy's ships, to sink it, and, probably, for probing marine life. Before the people have found an expedient to breathe underwater, each diving was short and composite.

The question remained how to stay under water for a longer period of time.
The respiration through a stem allows the man to plunge, but, apparently, if the stem is more then 0,5 meters, the difficulty to breathe trough it would be very great.

The respiration from a bag charged with air and located under water, also was utilized, but was not effective, and did not work at all in a series of cases, due to an inhalation of carbon dioxide. In XVI-th century the people began to utilize bells by filled air. It was the first effective expedient to stay underwater for a longer period of time. Then, later, skin suits were made in England and France and were designed in such a way, that air could move through it, and so the possibility to dive up to 18 meters existed

The most effective form of diving, which allowed people to conduct intensive work under water was in 1830, when air from the surface was made available in the metal top section of the suits.

In a XIX-th century two fundamental directions in probing appeared: one was scientific, another was technological. There were two forces conducting the scientific probing, Field Bertha and John Scott Haldanne, one form France and the other from Scotland.

Their works have helped to explain action of pressure on an organism, and also to spot safe limits of time for sinkages on compressed air. Twice, the improvements in a technological direction had the results. For example, occurrence of pumps for compression of air and its feeding, absorbents ΡΞ2, the adjusters etc., have made possible for the people to remain underwater more long-lived time.

Revolution in a history of a Diving has taken place in 1943. Jacque-Yves Cousteau and Emile Gagnan have decised the first working vehicle with an open-air circuit of respiration (process by which organism utilizes oxygen from its environment)

There are four fundamental types or method of Diving in a History of human desire to probe marine depths, where diving with aqualung is the last one.

a) Diving with the time lagged breathing (free diving and skin diving)
b) Diving in what or scoop.
c) Diving with compressed air given from a surface.
d) Diving with compressed air or other gas mixture

Systems with the closed cycle of respiration, in which inhaled air acts back in a respiratory contour, and after absorption of a carbon dioxide and adding of oxygen, again will be utilized for breathing. These systems were widely utilized before occurrence of systems with an open circuit of respiration, and were utilized in the fundamental militarian divers, which tried to avoid occurrence of bubbles on a surface of water.

Cyclades

Ionian Islands

Dodecanese