1.To travel from Chongqing to Jiuzhaigou, there is currently no direct train. You can first take a high-speed rail to Chengdu East Station (about 1.5 hours), then transfer to a bullet train to Huanglong Jiuzhai Station (fastest 1 hour 39 minutes, fare: CNY 141). Upon arrival, take a scenic area shuttle bus to Jiuzhaigou (2-hour drive, fare: CNY 51). For overland travel, Chongqing North Bus Station offers direct long-distance buses to Jiuzhaigou (about 12 hours, fare: CNY 160). 2.Regarding transportation from Zhenjiangguan to Jiuzhaigou, there are no free buses from Chuanqing Railway’s Zhenjiangguan Station to the scenic area. However, Songpan County provides a free shuttle bus from Zhenjiangguan Station to Songpan County Town (departs daily at 10:30 and 16:00). From Songpan, transfer to a bus to Jiuzhaigou (fare: CNY 42). As a professional travel service team, we can assist with ticket bookings—contact us in advance for exclusive travel planning.