The Circuito de Oro is the standard Paraguayan day out: a loop of roughly 200 km east and south of Asunción through the Cordillera hill towns, each of which makes or keeps one specific thing. It is the trip every Asunción agency sells and the reason most short-stay visitors see anything of the country at all.
The full ring runs Asunción – Itauguá – Areguá – San Bernardino – Caacupé – Tobatí – Piribebuy – Paraguarí – Yaguarón – Asunción, and it is genuinely doable in a long day with a car. On buses it is not a loop at all: each town is an easy out-and-back from the capital, and trying to hop between them costs more time than it saves.
If you only have one day, three stops carry it. Yaguarón for the Franciscan church of San Buenaventura, a Guaraní-baroque interior of carved and painted wood that is one of the finest colonial buildings in South America and free to walk into. Areguá for the ceramics workshops on the cobbled hill and the strawberries. San Bernardino for lunch on Lake Ypacaraí.
The others are worth the stop if you have time: Itauguá for ñandutí, the radial lace that is the national craft; Caacupé for the basilica; Tobatí for wood carving and a startling red sandstone outcrop above the town; Piribebuy for the 1640 church and a museum about the massacre that happened here in 1869; Paraguarí for the hills and the old railway.
Go on a weekday if you want the workshops open and the roads quiet; go on a Sunday if you want the towns busy and half the workshops shut.
