Physical geography Q- Where are the Andes? A- At the end of the armies. Heard it before? Well the Andes mountains are actually in several countries in South America including Bolivia. Bolivia is in the centre of South America and it borders Brazil, Peru, Paraguay, Chile and Argentina. It is divided into three regions: the Altiplano, the Valles and the Llanos. I went to the Altiplano first and it was freezing. I also felt a bit dizzy until I got used to the altitude, most of this region is over 4,000m above sea level. The highest mountain I saw was Mount Sajama and this stands a whopping 6,542m tall. The Altiplano covers about 20% of Bolivia. In the lowest parts of the Altiplano I saw some bushes, trees and grass, but higher up there's nothing but thorns and cacti. It was dry when I was there. It usually rains between November and March, but there have been droughts in the last few years. I took a boat around Lake Titicaca which is the highest place in the world where you can do this. At 233km across it's bigger than you could ever imagine. Apparently the Incas believed that life originally came from the islands in the middle of the lake and when you're there you can kind of see why they thought that. Next I went to the Valles, which unsurprisingly gets its name from the valleys that are found to the east of the Altiplano. Its still pretty high at about 2,000m, but I was thankful that it was a bit warmer at least. I saw lots of crops growing here including maize and vegetables on the higher land and coffee, cocoa and bananas where it's a bit lower and warmer. Finally I went to the Llanos which is the largest region and covers 65% of the country. The name means plains but I saw allsorts of landscapes here including rainforest, swamps and savannah. I saw lots of sugar, rice and corn growing, and there were cows everywhere I looked. This is the lowest part of the country at about 1,000m above sea level.