The South American country that has a coastline on both the Pacific and Atlantic Oceans is Chile. Stretching along the western edge of South America, Chile has a long Pacific coastline famous for its stunning views, beaches, and diverse marine life. On the eastern side, it shares a border with Argentina, while its southern coast provides access to the Atlantic through the Strait of Magellan. This unique geographical feature allows Chile to experience diverse climates and ecosystems, enriching its cultural and natural heritage.