Shelters of Cinto de las Letras and Cinto Ventana Monument · Dos Aguas, La Hoya de Buñol, Valencia Image of Dos Aguas, not of the place itself. The rock shelters of Cinto de las Letras and Cinto Ventana, in Dos Aguas, lie next to the Cueva de la Cocina, and it is possible that its same occupants were the authors of these cave paintings. The representations belong to Levantine art, dated between 10,000 and 6,500 years ago, one of the most singular sets of rock art in the municipality. Photo: 19Tarrestnom65 (CC BY-SA 4.0) What to see and do in Dos Aguas