Qara Su, Qarasu or Los Island, is an uninhabited sandy island off the Bay of Baku

Baku

Baku , sometimes spelled as Baki or Bakou, is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and of the Caucasus region. It is located on the southern shore of the Absheron Peninsula, which projects into the Caspian Sea. The city consists of two principal...

, Azerbaijan

Azerbaijan

Azerbaijan , officially the Republic of Azerbaijan is the largest country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded by the Caspian Sea to the east, Russia to the north, Georgia to the northwest, Armenia to the west, and Iran to...

. This island is part of the Baku Archipelago

Baku Archipelago

The Baku Archipelago is a group of coastal islands close to Baku, Azerbaijan. The waters surrounding the islands are shallow.The archipelago is made up of the following islands, besides a few small sandbanks.-Islands:Islands located in the Bay of Baku:...

, which consists of the following islands: Boyuk Zira or Nargin, Dash Zira

Vulf

Vulf or Volf is an island also known as Dash Zira . The word "Zira" originated in the Arabic word "Jazīra", meaning "island". Vulf is tiny and uninhabited...

, Kichik Zira

Kichik Zira

Kichik Zira , also known as Qum and as Sandy Island, is an uninhabited island off the Bay of Baku, Azerbaijan.This island is part of the Baku Archipelago, which consists of the following islands: Boyuk Zira, Dash Zira, Zenbil, Sangi-Mugan, Chikil, Qara Su, Khara Zira, Gil, Ignat Dash and a few...

 (Qum or Sandy Island), Zenbil

Zenbil

Zenbil or Zanbil, also spelled Zənbil, is a small island in the Caspian Sea off the Bay of Baku, Azerbaijan. This island is also known as Duvanni Island. The name Zenbil is Persian and means "a big basket"...

, Sangi-Mugan, Chikil

Chikil

Chikil, also known as Oblivnoy, is an uninhabited island off the Bay of Baku, Azerbaijan. This island is part of the Baku Archipelago, which consists of the following islands: Boyuk Zira, Dash Zira, Kichik Zira , Zenbil, Sangi-Mugan, Chikil, Qara Su, Khara Zira, Gil, Ignat Dash and a few smaller...

, Qara Su, Khara Zira

Bulla

-People:* Anton Bulla, a Slovak footballer and coach* Clyde Robert Bulla , an American author of books for children* Johnny Bulla, an American golfer* Karl Bulla, a Russian photographer* Max Bulla, an Australian bicycle racer...

, Gil

Gil Island (Azerbaijan)

Gil Island also Glinyanii Island is an island of Azerbaijan in the Caspian Sea.This island is part of the Baku Archipelago, which consists of the following islands: Boyuk Zira, Dash Zira, Kichik Zira , Zenbil, Sangi-Mugan or Svinoy, Chikil, Qara Su, Khara Zira, Gil, Ignat Dash and a few smaller ones...

, Ignat Dash and a few smaller ones.

Qara Su is an island of tectonic origin. It has a length of 900 m, and a width of 600 m. Formerly there were large gas fields on the island.
Qara Su's surrounding waters are very shallow. There is very little vegetation on the island due to oil pollution as well as other factors.

Caspian seal

Caspian Seal

Caspian seals , one of the smallest members of the earless seal family, are unique in that they are found exclusively in the brackish Caspian Sea. They can be found not only along the shorelines, but also on the many rocky islands and floating blocks of ice that dot the Caspian Sea...

s, sturgeon

Sturgeon

Sturgeon is the common name used for some 26 species of fish in the family Acipenseridae, including the genera Acipenser, Huso, Scaphirhynchus and Pseudoscaphirhynchus. The term includes over 20 species commonly referred to as sturgeon and several closely related species that have distinct common...

, and numerous types of birds, like teal

Teal

Teal may mean:* Teal , a medium greenish-blue color* Various ducks:** Baikal Teal, Anas formosa** Black Teal, Aythya novaeseelandiae** Blue-winged Teal, Anas discors** Brown Teal, Anas aucklandica** Campbell Teal Anas nesiotis...

 ducks, herring gull

Herring Gull

The European Herring Gull is a large gull , and is the most abundant and best known of all gulls along the shores of western Europe. It breeds across Northern Europe, Western Europe, Scandinavia and the Baltic states...

s, and grebes are some of the species that can be found on and around Qara Su Island.