The Hato Caves were once located beneath the sea, but as the ocean levels lowered, they emerged from beneath the waves. The caves, made of marine coral limestone, are located on the northern coast of Curaçao. Caiquetio Indians are the first humans to inhabit the area, but they apparently did not venture too far inside the caves. Later, they served as a popular hiding spot for runaway slaves. Interestingly, the caves are hot caves, and the tempature inside is not cooler like many caves.