 The inlet is shallow and cuts deep into the coast extending east and then roughly southwards in a SSW direction.Like all shallow gulfs of the eastern shores of the Caspian, it has a high salinity.In the same manner as the Dead Kultuk, the Kaydak Inlet had a distinct coastline in former times, but since the 1990s, with higher Caspian Sea levels, the water penetrates inland through the neck of the bay producing waterlogged marshes.