Visitors to a public garden in Diamond Hill have complained about strict rules, such as having to dress appropriately and walk in only one direction. Nan Lian Garden - covering 35,000 square metres and built in the style of the Tang dynasty with tree, rock and water features - is different from most public parks because it is managed by the nearby Chi Lin Nunnery rather than the Leisure and Cultural Services Department. About 12 rules are stated at the entrance to the garden, reminding the public that carving, graffiti, paddling, running or frolicking are not allowed. People can take photographs but tripods are not allowed, and commercial photography is prohibited. Visitors must dress appropriately and security guards are on hand to ensure everyone follows the direction of the garden route when strolling. A Mr Ng called an RTHK phone-in programme yesterday and complained that he was stopped by the security guards when he waved his hands in front of the fish ponds. Another visitor told the show security guards had stopped her when she began to sketch the garden. Security guards are visible at all the scenic spots and are stationed at the entrance and exits. According to a promotional leaflet from the nunnery, the garden operates under a design-and-build entrustment contract agreed between the nunnery and government in 2003. The government funded the infrastructure and construction while the nunnery donated all other costs. The garden was opened to the public in 2006, and since then 'Chi Lin has undertaken to be responsible for the garden for five years for a nominal fee of HK$1'. In response to the complaints, a spokeswoman for the Leisure and Cultural Services Department said the garden's management and daily operation were taken over by the nunnery and it ran things according to different rules. She said the garden management office hoped to create a sense of tranquillity that could not be found in ordinary parks. Drawing and tripods were not allowed because the footpaths were narrow and such activities might obstruct other visitors.