Reached by riverboat trip from Asunción, Concepción (pop. 25,000) is worth a visit only if you have a week to spare and are looking for an adventure. The weeklong roundtrip cruise from Asunción is truly the attraction more than the destination of this small town 210 km (130 miles) north of the capital. There is great bird watching and wildlife viewing in the nearby Chaco if you have access to a vehicle with four-wheel drive.