The underwater topography sea is relatively simple. As the distance from shore the depth slowly and gradually increase, reaching the central part of the sea 13 m. The main area is characterized by bottom depths 5-13 m areas of greatest depth is at the heart of the sea. Location isobaths close to symmetrical, disrupted a small them out of the north-east towards the Gulf of Taganrog. 5 m isobath is located approximately 2 km from the coast, away from him near the Gulf of Taganrog and in the Gulf near the mouth of the Don. In Taganrog bay depth increases from the mouth of the Don (2-3 m) towards the open sea, reaching the border of the bay to the sea 8-9 pm in the topography of the Azov Sea are marked system seamounts extending along the eastern (Zhelezinskaya Bank) and Western (banks and Marine Arabatsk) coast, the depths over which decreased from 8-9 to 3-5 meters underwater coastal slope north coast is characterized by a broad shallow (20-30 km), with depths of 6-7 m to the south coast - a steep underwater slope to depths of 11-12 m.

   Catchment area of the Azov Sea is 586 000 km ².

   Sea coast largely flat and sandy, just on the south coast there are the hills of volcanic origin, which sometimes pass into the steep hill leading.

   Ocean currents are dependent on the blowing is very strong north-eastern and south-westerly winds and therefore very often change their direction. The main course is a circular course along the shores of the Azov Sea counterclockwise.