Group 1 - The tourism market is heating up as the Spring Festival approaches, with "railway travel" becoming a popular choice among consumers [1] - The railway department has launched multiple special tourist trains to meet consumer demand [1] Group 2 - The first tourist train from the Qinghai-Tibet Plateau to the Guangdong-Hong Kong-Macao Greater Bay Area and Hainan, Y458, departed from Xining Station [5] - The 14-day journey will take tourists through major cities such as Changsha, Guangzhou, Shenzhen, Hong Kong, Macau, Zhuhai, and Haikou, allowing for seamless travel without transfers or luggage handling [5] - Over 70% of the tourists are from the "silver-haired" demographic, with an average age of 65, and the oldest passenger being 81 years old [5]