Korea Bay in the context of South Hwanghae

The following is a list of major islands of North Korea (Democratic People's Republic of Korea), arranged by province. For a list of islands in South Korea (Republic of Korea), see: List of islands of South Korea.

North Korea occupies the northern portion of the Korean Peninsula which extends about 1,000 kilometres (620 mi) southward from the northeast Asian continental landmass. The 8,460 kilometres (5,260 mi) coastline of Korea is highly irregular, and North Korea accounts for 2,495 kilometres (1,550 mi) of this, roughly one-third. To the west of North Korea are the Yellow Sea and Korea Bay, and to its east lies Japan across the Sea of Japan (East Sea of Korea). Most of the islands of North Korea are on its west coast.

Dalian (/dɑːˈljɛn/ dah-LYEN) is a major sub-provincial port city in Liaoning province, People's Republic of China, and is Liaoning's second largest city (after the provincial capital Shenyang) and the third-most populous city of Northeast China (after Shenyang and Harbin). Located on the southern tip of the Liaodong peninsula, it is the southernmost city in both Liaoning and the entire Northeast. Dalian borders the prefectural cities of Yingkou and Anshan to the north and Dandong to the northeast, and also shares maritime boundaries with Qinhuangdao and Huludao across the Liaodong Bay to the west and northwest, Yantai and Weihai on the Shandong peninsula across the Bohai Strait to the south, and North Korea across the Korea Bay to the east.

As of the 2020 census, its total population was 7,450,785 inhabitants of whom 5,106,719 lived in the built-up (or metro) area made of 6 out of 7 urban districts, Pulandian District not being conurbated yet.

Dandong is a coastal prefecture-level city in southeastern Liaoning, in the northeastern region of China.

It is the largest Chinese border city, facing Sinuiju, North Korea, across the Yalu River, which demarcates the Sino-North Korean border. To the southwest of the city, the river flows into Korea Bay. Dandong has therefore had a dynamic history because of its strategic location for the northeast's rich natural resources and because of its convenient access to the ocean. It is designated as a major export production centre for the province, and is a port city connected by rail with Shenyang and Sinuiju. A significant amount of trade with North Korea flows through the city.

The China–North Korea border is an international border separating China and North Korea, extending from Korea Bay in the west to a tripoint with Russia in the east. The total length of the border is 1,352 kilometers (840 mi). The current border was created by two secret treaties signed between China and North Korea in 1962 and 1964.

The Taedong River (Korean: 대동강) is a large river in North Korea. The river rises in the Rangrim Mountains of the country's north where it then flows southwest into Korea Bay at Namp'o. In between, it runs through the country's capital, Pyongyang. Along the river are landmarks such as the Juche Tower and Kim Il-sung Square.

The river is 439 kilometres (273 miles) in length, and is generally deep. It is the fifth-longest river on the Korean peninsula and the second-longest in North Korea. Pyongyang is approximately 110 km upstream from the mouth, Sunchon 192 km upstream, and Taehŭng 414 km upstream. Because of its depth, it is widely used for river transport; it is navigable by large ships up to 65 km inland, although most commercial traffic stops at Songrim.