Alan Smith is blind. He teaches blind children in his country. To show the world that the blind can also do something amazing, he walked across the world's largest salt desert, Salar de Uyuni, only with the help of a GPS.
Walking across the desert is not easy for an able-bodied person, let alone (更不用说) a blind man. Beforesetting off, Alan spent three years training for the journey. He studied everything he could find about the place and asked for advice from other travelers. During his journey, he only took water, food and sleeping bags. He walked about 20 kilometers a day. He showed great perseverance (毅力) and finished the 140-kilometer journey in just seven days.
The brave teacher thought his week-long journey was wonderful. He said, "The journey was quite good. There were snow storms and winds, but luckily I made it."
