Carlos Paz sits in the Punilla Valley, in the green folds of the Sierras de Córdoba, gathered along the shore of San Roque Lake. The setting does most of the work. From the town you can ride a chairlift up Cerro La Cruz and look back over the whole basin - the rooftops, the water, the ridgelines rolling west toward higher peaks. The reservoir behind the San Roque dam is the town's playground, busy with water sports and edged by recreational areas. Locals proudly recount that when the dam was inaugurated in 1890, people called its reservoir the largest in the world, a reservoir holding up to 180 million cubic meters of water. It is the kind of superlative a resort town treasures whether or not the wider world agrees.

Carlos Paz earns its living by entertaining people, and it does so without restraint. The main season runs hot through January and February, when the streets fill and the theaters light up - this is one of Argentina's great summer-stock destinations, where Buenos Aires comedians and variety shows decamp for the holidays. Casinos and nightclubs glow along the avenues, many of them local institutions in their own right. Rallies roar through the surrounding hills. For visitors who want the scenery without the crowds, the advice from regulars is simple: come in December or March, when the days are still warm and the lake is still inviting but the lines have thinned.

Beyond the clock, the town collects oddities the way resort towns do. The Embudo, a striking piece of engineering on the river, has become another local symbol. A tractor museum nearby holds more than 250 machines built between 1880 and 1950, and claims among them the first four-wheel-drive tractor ever invented. None of it is high culture, and that is rather the point. The real souvenir to carry home is edible: the alfajores serranos, the soft layered sweets of the sierras, dusted and filled and sold in every shop window - a taste that lingers long after the cuckoo's last call of the day has faded.

For all its noise, Carlos Paz is also a doorway to quieter country. The town sits about forty minutes by road from the city of Córdoba and from neighboring mountain towns like Cosquín, Tanti, and Alta Gracia. Head out along the local routes and the landscape changes fast: chapels and convents, the small village of San Antonio de Arredondo, and a mountain road climbing toward the Bosque Alegre ground station, where a major astrophysical observatory keeps watch on the southern sky. The peacefulness of the river and the surrounding mountains is, in the end, what brings most people back - the chance to slow down within easy reach of so much motion.