Playing on the Datanla Alpine Coaster was really fun and really thrilling! Unfortunately, on the first day I arrived, there was maintenance going on. The staff was very friendly, and immediately told me that the ticket could be exchanged for the next day. I wasn't sure if I could actually go in or not without exchanging the ticket first, so I exchanged it at the counter to be safe. But once I got on the coaster, everything was worth it! There is no ride like this in Indonesia, so if you're in South Vietnam, this is a must-try! A different experience and not to be missed.