Licancabur    
It is not very difficult to climb Licancabur without guide as well, also in case of snow of about 10 cm as far you can follow the trail. But I do not advice it, the risk of loosing the thrail in case of bad weather is real, and you save only 70 US$. It´s much safer and more economic to take worthy seňor Eusebio Saires. You can´t lose the way to Aconcagua, but there are just few of people on Licancabur. The weather is usualy good in the morning, but strong wind, clouds and rain can occur. The description of the trail is rough, as I tried to memorize it, but I folowed Eusebiou on good footpath, but may it be, there are some junctions that I passed over. There is only one road over Laguna verde, which goes on the inferior part of Jurique´s slope. The road turnes beside the Laguna´s bay to the south in between Juriques and Licancabur. We parked before the steper ascent between two small rock uphills forming small valley. After 200-300 m of walk the small valey enlarges to  starting mild ascent. Then the trail slowly turn to the right (west). I think there´s another trail that goes directly in between Licancabur and Juriques. Walking in western direction you pass the Incka ruins on the left side (about 300-400 m after the junction). Then the trail begins the ascent more, but goes always strightly. Here you can see the very big red stone in the down part of long rocky canal. There is a point by the stone, where the ascending trail turns little to the right and in the switchbacks climbes up. Also the descending way of return, which rolls in the long rocky canal join the trail there. It´s impossible to climb up in the rocky canal, it´s just very fast for sliping down the hill. So, acsending trail climbs in switch-backs on the north-east slope of Licancabur – little to the right of big descending canal. The trail is not marked but it´s in good condition in all running. You have to pass  another ruins and then the small cross. I highly recomend to go to the point, from where you can see the big red stone the day before to get orientated in the landscape. You should begin to ascent at 4.00 in the morning, not later than at 5.00, but there is still a dark at half past six in Bolivia! The way up takes 6-8 hours and you should be on the summit before the mid-day. You can easily lose the trail in the dark – there is one trail to saddle between Juriques and Licancabur, another to Juriques, another goes to Chile on the northern slope of Licancabur, but I don´t remmember the junctions exactly. It can be hard to decide and climb in snowy conditions. The weather is not stable, hard rain, strong wind or snowing can occur during the summer and the clouds are always flying all around. There is often the rain on Laguna Verde in the afternoon. But generally – Atacama is the driest desert in the world and there is no long period of bad weather like in other mountains.
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