The "Quad Bouys" (Sinpho City)
Korea (North) /
Hamgyongnamdo /
Sinpo /
Sinpho City
World
/ Korea (North)
/ Hamgyongnamdo
/ Sinpo
World / North Korea / Hamgyŏng-namdo
submarine, buoy

Nearby cities:
Coordinates: 40°0'31"N 128°13'8"E
- Puam-Dong Submarine Base 197 km
- Kuril-Kamchatka Trench 2316 km
- Wreck of HIJMS I-45 3330 km
- Wreck of USS Grenadier (SS-210) 4816 km
- S-80 5954 km
- Zaozersk Munitions Depot 6115 km
- Place of sinking К-278 "Коmsomolets" 6482 km
- Turkish Naval Base 7616 km
- U-852 (wreck) 8253 km
- Graham Island 9217 km
- Sambkkae NPRK Navy Submarine port 1.4 km
- Mayang-do 2.1 km
- Nŏ-bawi Harbor 2.8 km
- Sinp’o Harbor 3.9 km
- Pongdae Dockyard 5.1 km
- Homanpo 11 km
- Kumho District 12 km
- Pukchong County 22 km
- Hongwon County 23 km
- Rakwon County 35 km