Edible bird’s nest is made by a species of cave-dwelling swiftlets. Weaved from their saliva and harvested in caves and man-made nesting houses, bird’s nests are then painstakingly cleaned ...
Voiceover: The Lin Ma Hang Lead Mine is a hidden gem that can be found in Robin’s Nest Country Park which is situated in the northeastern part of the New Territories. After a year-long revitalisation ...