Kamen Opasnosti Камень Опасности
Island
Lighthouse on Kamen Opasnosti.
Kamen Opasnosti
Coordinates: 45°47′15″N 142°13′01″E / 45.7875°N 142.217°E / 45.7875; 142.217
Country	Russian Federation
Federal subject	Far Eastern Federal District
Oblast	Sakhalin Oblast

Kamen Opasnosti (Russian: Камень Опасности, lit. 'Rock of Danger', Japanese 二丈岩　Nijouiwa) is an islet group of rocks, in La Pérouse Strait and the Sea of Okhotsk.^[1]

Kamen Opasnosti is located around 14 kilometres (8.7 mi) southeast of Cape Crillon, the southernmost point of Sakhalin island.

It is a small group of bare rocks, devoid of vegetation. Its length is 150 metres (490 ft), its width is 50 metres (160 ft), and its highest point is approx. 8 metres (26 ft).

The rocks were a great hindrance to marine traffic in La Pérouse Strait, aggravated by frequent dense fogs in the summertime. To avoid possible collision, ships had to set some of their crew members on guard to locate Kamen Opasnosti by listening to the roar of sea lions living on it. A lighthouse was finally constructed on the rocks in 1913, during the Japanese administration of the area.

• Islands of the Sea of Okhotsk
• Islands of the Russian Far East