Trekking in Tibet
Tibet's high altitude and the atmosphere allow the sun's solar radiation to strike the earth with unusual intensity. To protect your eyes and skin, you'd better to bring the sunscreen, which with a sun protection factor of 15 and sunglasses are also useful. And lip creams and balms are also sold with SPF ratings, zinc, oxide creams provide 100% block out. Generally from April to October is the best season for opting a Tibet tour. But it really depends on your route and a normal winter Tibet tour schedule is quite comfortable, because in winter, the tourist rush is not much and you can enjoy the beautiful scenery freely.