Highly recommend for those who want to go to Ngongping, buy tickets first at Traveloka. Because in my experience there, the queue to buy tickets is very long. So if you buy tickets at OTA, you can immediately queue to ride the cable car without having to queue to buy tickets again. The queue is also not too long because the cable car is a lot. 1 standard cable car max 10 people and mixed with other people. Also when buying at Traveloka, there is a B1G1 sale, it's really great saving money!!!