its not in the manicured part of the gardens, but i suspect its within their tenure. its in a rubbly drainage line about 30 m down from the road (i can see the location on this site - guessing you cant?)
Only moderators can see orchid locations. It's to help protect them. I don't care for the exact location, but I was wondering if you were reporting on the status of the "captive" ones. :p