When I first arrived at the Skyline Luge counter, I had to queue to exchange the voucher I had bought from Traveloka for a green coupon. But after that, there were no clear instructions on where to start, so we figured it out ourselves. We walked down the stairs until we found the place to choose helmets, and then we took the skyline which was very high until the end, finally being able to go down and ride the luge. We really enjoy the rides! Our voucher is 3 luge & 3 skyrides, which means we enroll the same path for 3 times. Pro: use pants, and shoes. Cons: for those who have phobia of height, please don't try this rides. No safety at all when you are in the skyride.