After leaving the beautiful province of Chincha, and travelling over sandy wastes, the traveller reaches the refreshing valley of Yea, which was not less rich and populous than the others. A river flows through it, which, during some months in the year when the season is summer in the Sierra, has so little water that the inhabitants of the valley feel the want of it. In the days of their prosperity, before they were subdued by the Spaniards, and when they enjoyed the government of the Yncas, besides the channels with which they irrigated the valley, they had one much larger than the rest, brought with great skill from the mountains in such wise that it flowed without reducing the quantity of water in the river. Now that this great channel is destroyed, they make deep holes in the bed of the river when it is dry, and thus they obtain water to drink, and for watering their crops. In this valley of Yca there were great lords in former times who were much feared and reverenced. The Yncas ordered palaces and other buildings to be made in the valley. The inhabitants had the same customs as the other Indians, burying live women and great treasure with their dead.

In this valley there are very large woods of algaroba trees, and many fruit trees of the kinds already described; besides deer, pigeons, doves, and other game.