Posadas. Two hours' drive west of Bajo Caracoles, the seldom-visited area around turquoise Lago Posadas and lapis-blue Lago Pueyrredón is well worth the detour, but most places of interest around the lakes are accessible only to those with their own vehicle - it's difficult even to hitch due to the lack of traffic. The two lakes are famous for their dramatic colour contrast - most notable in spring - and are separated by the narrowest of strips of land, the arrow-straight La Península , which looks for all the world like an man-made causeway. It was actually formed during a static phase of the last ice age, when an otherwise retreating glacier left an intermediate dump of moraine, now covered by sand dunes, which cut the shallow lagoon of Lago Posadas off from its grander and more tempestuous neighbour. Pueyrredón is the better of the two for fishing - rainbow and brown trout of up to 8kg can be found at the mouth of the Río Oro.
The area's main village is listed on maps as Hipólito Irigoyen , but is usually referred to by its old name of Posadas, from the neighbouring lake - though little more than a loosely grouped assemblage of modern houses, its inhabitants are amicable, and keen to promote the region. Two kilometres to the south of town, the low, rounded wedge of Cerro de los Indios lies beneath the higher scarp of the valley. Hotels in Posadas |