[1] The port of Moskalvo (Москальво) is located on the eastern shore of the Sakhalin Gulf, close to Ush Island.
Sakhalin Gulf was frequented by American and Russian whaleships targeting bowhead whales between 1848 and 1874.
[4] On 6–7 September 1854, the ship City (351 tons), of New Bedford, grounded and wrecked on the western side of the gulf.
Most of her crew made it to Sakhalin Island, but seven men, including the first officer, perished on a raft from the wreck of the bark Peruvian.
[5] In the summer beluga whales aggregate at the head of Sakhalin Gulf to feed on spawning salmon.