The Xiangdao cable car is definitely worth a ride. Buying tickets online is about the same as buying them in person, with a difference of about 3 or 4 RMB. However, it's more convenient on Ctrip—you don't have to pick up your tickets, you can buy and use them right away! For the outbound trip, my family basically shared a cable car, which was a great time to take photos. We chose the last available time slot for the return trip, so it was packed, so we had to share a ride. The ride took about 25 minutes to Xiangdao Paradise. The cable car ticket includes admission to the theme park, which has a water park and amusement rides. If you're interested, you could spend the entire day there!