The two-centimetre long Nannophya pygmaea is one of the smallest dragonflies in the world and the smallest recorded in Hong Kong.

Tsim Bei Tsui, an internationally important wetland, has fish ponds, shrimp ponds, mudflats, and mangroves. This area, where birds and other wetland animals roost and feed, has high ecological value.

When the tide is low, Inner Deep Bay in Tsim Bei Tsui is transformed into expansive mudflats where different species of wetland birds, such as water birds and waders, look for food.

Egrets are the most beautiful during their breeding season in March and April when they flaunt their breeding plumage to attract mates.

During winter, birds from parts of northern Asia, such as Siberia and northeast China, migrate to warmer places in the south. Many of them will stop over in Mai Po marshes and Deep Bay for a meal before continuing their journey.

All sorts of small animals crawl in and out of the muddy holes in mudflats at low ebb. The cutest of all are the mudskippers which wriggle and bounce like acrobats.

Information on the Wetlands can be found at: http://www.afcd.gov.hk/conservation/eng/abowetinfo.htm