About four leagues from this city of Cuzco, a little more or less, there is a valley called Yucay, which is very beautiful, confined between ranges of mountains in such sort that the shelter thus afforded makes the climate very pleasant and healthy. It is neither too hot nor too cold, and is considered so excellent that the citizens of Cuzco have several times proposed to remove the city into the valley. But as the houses in the city are so grand, they could not undertake to build them anew. They have planted many trees in this valley of Yucay, and there is good hope that in time there will be large vineyards and beautiful and refreshing orchards as well in this valley, as in that of Vilcas, and in others; indeed, they have already been commenced. I say more of this valley than of the others, because the Yncas thought much of it, and went to it for their festivities and solace, especially Huira-ccocha Ynca, who was the grandfather of Tupac Ynca Yupanqui. In all parts of the valley are to be seen fragments of many buildings which have once been very large, especially those at Tambo, three leagues down the valley, between two great mountains, forming a ravine through which a stream flows. Although the climate of the valley is as pleasant as I have described, these mountains are quite white with snow during the greater part of the year.