The cache was placed on the open day of the nearby international school. Every year around late November to early December, a Christmas Bazaar (Weihnachtsbasar) will be held in the school campus, where you can find handmade Christmas decorations, traditional German Christmas food, second-handed books and toys, student performances, etc. Booths will be set up serving German and Asian cooked food, desserts and snacks. The Raclette is a must-try, which is not commonly sold elsewhere in Hong Kong. Don't be surprised to find booths selling beer and wine inside the school campus, drinking is part of their culture. As the event is held only once per year, if you want to see how local German people prepare for Christmas, you have to wait till next year :)
On the way to GZ, you can see both the Aberdeen Upper Reservoir and the Aberdeen Lower Reservoir at the same time. You can take some nice pictures from there.
The container has been replaced, much larger than the original one. It can hold some trackables now.