A hat trick is the achievement of a generally positive feat three times in a game, or another achievement based on the number three. A hat trick in Geocaching means you grab three smiley in a row and therefore you are definitely a skillful geocacher.
The cache is located at the edge of Mody Road Garden which hid the biggest secret of Hat Trick in Hong Kong. Come and grab the prize and let's strolling around the garden decorated with big hats.
Pay extra attention to the people and gardener who might sudden appear from any direction.
Please refer to the spoiler if you cannot put back the cache.