ancient paintings on the walls of liang kobori cave, sulawesi, indonesia

wood winter wildlife water walls wall undefined trunk tree tourism terrain temple sulawesi stream soil snow sketch site sap sand ruins rock research relief protected produce preserved plant pattern paintings painting ornaments nature natural muna metanduno life liang leaf kobori karst island iron invertebrate insect indonesia ice hunted humans green geology frost freezing formation food flower flooring floor drawing dish dessert depict clay century caves cave carving brick branch blood art