Twin Lagoon is a surreal natural wonder where massive limestone karst walls hide two breathtaking bodies of water. Known for the “thermocline” phenomenon—where warm saltwater and cool freshwater meet—visitors experience a unique shimmering sensation while swimming. Whether you are kayaking through the narrow opening or swimming under a hidden limestone arch at low tide, the lagoons offer a thrilling sense of discovery and some of the most dramatic scenery in Palawan.