Today the December Aconcagua expedition team started the three-day trek into Plaza Argentina base camp. Beginning at the Punta de Vacas trailhead, they will hike just over 12km and gain about 450m of elevation as they make their way to the first camp at Pampa de Lenas. It’s a beautiful trek up the Vacas Valley and the team is supported by pack mules that carry most of the gear. This allows the team to enjoy the days hiking to base camp with comfortable day packs. On their way today, the team will stop for a picnic-style lunch along the banks of the Vacas River.