When preparing for a trip to Nepal, tourists can refer to the following Kathmandu Nepal elevation info. The main tourist cities in Nepal are less than 2,000 meters above sea level, and there is almost no altitude sickness. However, if it is due to fatigue on the road and a weakened physique, it may also cause altitude sickness. It's a normal physiological response of human physiology to the lack of oxygen at high altitude areas but it‘s different from person to person. Just pay attention to rest, don't do too intense exercise (such as short-distance accelerated running), don't be too excited (such as happily chatting with your partner), drink plenty of water, in most cases, the altitude sickness symptoms will gradually disappear within one to two days.