The Cache is located at a spot near the HKAYP HQ, within walking distance.
you DON'T need to going into or near the HQ to find the cache, it's outside.
GZ is on the 3rd floor garden, Please make sure you went ot the correct level.
Notes:
**Please bring your own pen
**Please be stealth and put the cache back to where it was. Thanks.
**GPS may be off, use hint.