To sign up for Chengdu tourism services or find comprehensive travel information, travelers can utilize official online platforms like GoChengdu (www.gochengdu.cn), which provides news, practical travel advice, and details on local attractions and government policies. For organized tours, the China International Travel Service (CITS) offers a variety of packages, including private tours to the Panda Base, Leshan Giant Buddha, and Jiuzhaigou, and can assist with customized itineraries and travel agencies. Additionally, the Sichuan China Travel Service, a major international agency, provides extensive tourist routes around Chengdu, covering sites like Dujiangyan, Qingcheng Mountain, and various ancient towns. For specialized experiences, such as luxury rail journeys on the Panda Express, travelers can contact dedicated advisors through specialized rail tour providers to refine their journey and handle bookings. Visitors can also consult the Tourist Office of the People's Republic of China for e-learning portals and online exhibitions to help plan their trip.