A pleasant half-day hike easily done independently from Mendoza, offering great views of both the Andean foothills behind and the vast expanse of Mendoza's plains to the front. Cerro Acro is the looming mountain to Mendoza's north west, topped with various antenna. It is also used as the base for paragliding. Take bus 300/301/302/303 in west direction from the road named Montevideo right next to Plaza Independencia (or Parque San Martin on Av Del Libertador) to El Challao Mirador, at the end of the line 8km to the northwest. From here walk across from the white nightclub following the dyke 100 metres, then take an unpaved track further west until you reach a small restaurant, mountaineering museum and clubhouse - then follow the track to the north (going through the gate). This is a popular hike for Mendocinos at the weekend, but during the week it may be deserted. You can treat yourself to a hearty asado as the restaurant - it has two menus, one more expensive than the other! From the Mirador, the hike is about a 3½-hour round trip. Get out of the area well before dark. In the summer, go early to avoid the worst of the heat, and in the winter bring a jacket, as it can be cool and windy at the top. Afterwards you could visit the aircraft hanger-sized church in Challao, a local version of Lourdes.