They stretch along the Kara Sea coastal region, right off the bleak coast of Siberia's Taymyr Peninsula.

The sea surrounding the Tillo Islands is covered with fast ice in the winter, which is long and bitter, and the climate is severe.

The surrounding sea is obstructed by pack ice even in the summer, so that these islands are connected with the mainland for most of the year.

[2] The Tillo Islands were explored by arctic geologist and prominent scientist Eduard Toll who led the Russian Polar Expedition on vessel Zarya in 1900–1902.

[3] This archipelago is named after Aleksey Tillo, a prominent Russian geographer, cartographer and land surveyor.