Sea caves are formed by sea forces attacking a weak zone in the coastal cliff. Weak zone is usually a zone of cracks that formed by geological structures. Weak zone can also be formed because there are differences in the composition of layering rock in which one type of rock harder than others. Caves formed began as a very narrow slit where the ocean waves with tremendous force due to the weight or volume of water and compressed air to penetrate the rock cracks continuously. Sand and stones carried by the waves generate additional erosion processes on cave walls. There are at least two sea caves in the Ciletuh geoarea, namely Sodongparat and Kunti Caves in Mandrajaya.