This impressive lake, between Peru and Bolivia, is located at 3,812 meters (12,500 feet) high and has a surface area of 8,372 km². There are more than 40 islands on it, some of which are not natural, but artificial floating islands. Some of the main attractions of the lake are: the floating islands of the Uros (about 42 artificial islands, built of floating reeds, that is, reeds of reeds, which is a plant that lives in the shallow parts of Lake Titicaca), Amantani (a natural island with an area of 15 km². Alpacas and other animals can be seen walking around the island. The locals are famous for their textiles, ceramics and adobe houses) and Taquile (a mountainous island in the lake, which was used as prison during the Spanish colonial era and then later until the beginning of the 20th century. The current population of the island of Taquile is around 3,000. Attractions include agricultural terraces, the beautiful views towards the mainland coasts and nearby islands).