The bay measures about 40 km from the mouth of the Gol'tsovaya River in the west to its broadest opening to the sea in the east.

Owing to its extreme northerly location, the climate in the area of the Simsa Bay is exceptionally severe, with prolonged, bitter winters.

In 1940-41 Soviet hydrographers found the remains of people, money, weapons and other items in the Simsa Bay and in the nearby Faddey Islands.

According to his point of view the deceased seafarers tried to sail by sea from the Khatanga Gulf to the mouth of the Yenisei on two ships in order to load furs (Troitsky, 1991).

The second ship reached the Simsa Bay, where the crew built a house in order to leave three ill people there.