By Boat

From Buenos Aires [1], there are ferry connections across the river to the Uruguayan capital of Montevideo, but also to the resort town of Piriápolis (summer only) and to the 18th-century town of Colonia. From the suburban river port of Tigre [2], there are launches to the Uruguayan river ports of Carmelo and Nueva Palmira.

In addition, there is the popular and scenic but increasingly expensive bus-boat shuttle between Bariloche [3] and the Chilean city of Puerto Montt [4], and a relatively short cruise (three days–plus) that carries passengers between Punta Arenas (Chile) [5] and Ushuaia [6].