Earth Sandwich / City antipodes / Goyang-si
Antipode finder · South Korea
The antipode of
Goyang-si.
Draw a straight line from Goyang-si (37.66° N, 126.83° E) through the centre of the Earth and it comes out at 37.66° S, 53.17° W, in the South Atlantic Ocean, 322 km from the nearest dry land, off the coast of Argentina. The other slice of an Earth sandwich would sink.
- Goyang-si
- 37.66° N, 126.83° E · about 120 m above sea level · 1,061,752 people
- Antipode
- 37.66° S, 53.17° W
- What is there
- The South Atlantic Ocean; the sea floor there lies about 3,560 m below the surface
- Nearest dry land
- 322 km from the antipode, on the coast of Argentina
- Nearest town
- Mar de Ajó, Argentina · 328 km from the antipode
- Nearest big city
- Montevideo · 409 km from the antipode
- Sandwich verdict
- SOGGY the other slice lands in open water
- Nearest exact spot
- 344 km away, near Sinan, South Korea ⇄ near La Paloma, Uruguay
Can you make an Earth sandwich from Goyang-si?
No, not from Goyang-si itself. The other slice would land in the South Atlantic Ocean, 322 km from the nearest dry land (Argentina), where the sea floor lies about 3,560 m below the surface. Boats do not count (Sandwich Law § 1.3).
The nearest place from which an exact Earth sandwich is possible is 344 km from Goyang-si, 30 km from Sinan, South Korea. Its other slice would go down 1 km from La Paloma, Uruguay.
How this was worked out: the antipode flips the latitude and moves the longitude by 180°. Land or sea comes from the OpenStreetMap coastline the map uses; the sandwich verdict and elevations come from the verifier's 0.2° grid (Natural Earth land, ETOPO 2022 relief); water names from Natural Earth; towns and populations from GeoNames. The city's position is GeoNames' point for it; a big city's suburbs spread tens of kilometres around that point, and the figures move with them. Generated 2026-09-29.