4 blocks from the central square, on the corner between Potosí and Ñuflo de Chavez. Very good place to try delicious Camba food in a beautiful setting. The restaurant is named for the traditional style well it has in its central courtyard (aljibe in Guaraní). Costs about 35 bolivianos per main dish. The Majao del Pato (spicy rice dish with duck, egg and bananas) is very tasty, as is the Locro de Gallina (hearty chicken soup). Popular with locals.