WALKERS were yesterday urged to put their best feet forward in an effort to press the Government to protect the coastline. Friends of the Earth called on nature enthusiasts to don hiking boots and visit Lamma Island - before it is too late. Lamma, the territory's third largest island, is under threat from plans to reclaim part of its main harbour at Yung Shue Wan for a sewage treatment works. Friends of the Earth governor Adrian Norris said: 'Coastal areas are among the most threatened by the ever increasing pace of economic expansion, by reclamation and by the often needless degradation and destruction through insensitive development. 'Many coastal areas are unique, in terms of their ecological, cultural and historical heritage, yet few have been adequately surveyed and the administration's lack of any conservation policy means much of this heritage is in danger of being destroyed or forgotten,' he said. Mr Norris was speaking at the launch of the group's series of coastal guides. He said Lamma had been chosen for the first booklet because its scenery was not protected. The guide comes a fortnight after the Government gave the go-ahead for a project to build a sewage treatment works, refuse transfer station and construction material unloading area in the main bay. The slopes of Mount Stenhouse have been suggested as a possible source of fill for the reclamation work. Mr Norris said Yung Shue Wan village had been spoilt by unregulated building work on former market garden land. Friends of the Earth director Mei Ng Fong Siu-mei said: 'There's no time to waste - visit the beautiful places while you can before they disappear. 'We hope to awaken our decision makers, the Hong Kong Government and the future government, to develop a long-term coast management policy.'