The Greek seas are recorded as the cleanest in the Mediterranean.
Thus, diving into the “big blue” of Greece represents a unique experience for those who attempt it, provided they have prior training and special precautions are taken. Scuba (Scuba=Self-Contained Underwater Breathing Apparatus) diving using the proper equipment is allowed in all sea areas where no specific prohibition is in force for the protection of archaeological resources. Any discovery of an ancient object in the course of scuba diving must be immediately reported to the nearest Port Authorities. It is prohibited to bring to the surface or to move objects of archaeological or other significance, located in the deep. Underwater photography or cinematography requires the permission of the local Port Authorities, which is granted after the concurrence of the competent Underwater Archaeological Findings Inspection dept. of the Ministry for Culture & Tourism.
There are numerous scuba diving centres operating in Greece, as well as scuba diving schools, while there are also scuba diving vessels that combine a holiday with scuba diving and offer an infinite variety of sights both in and out of the water.