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This is an easy but all day hike (~32 km) up to the Laguna (3-4 hr) and back. With the taxi you will save 1.5-2 hr. It uses the same trail as to the Laguna Glaciar. There are many camp sites along the way, in case you want to head back only the next day. It gets cold however at 4,000 m, so it is important to have a proper tent and sleeping bag. At the altitude around the Laguna also the water should be save to drink, but further down there are still many villages which use the water for all purposes.
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