Which side of Panama has the longer coastline?

The Pacific side of Panama has the longer coastline. While the Caribbean Sea coastline stretches approximately 800 miles (1,290 km), the Pacific Ocean coast extends for about 1,060 miles (1,700 km).1

The Pacific coastline is significantly more indented and irregular than the Caribbean side, a feature enhanced by the presence of the Azuero Peninsula and the Gulf of Panama. Additionally, the majority of Panama's more than 1,600 islands are located off the Pacific coast.1