I REFER to the letter from Susan Pang regarding Hong Kong's coral (South China Morning Post, December 17). Ms Pang's comment was very fair with regard to the harbour, however how far is the 'very far' she says one has to go out of Hong Kong to see coral? Every weekend hundreds of avid recreational scuba divers set off from various points around Hong Kong to see some of Hong Kong's still spectacular coral. In fact only five minutes from Sai Kung is a terrific coral reef which rivals some I have seen in the Philippines. Although Hong Kong does not have any more old coral reefs like you would see at the Great Barrier Reef, we do have an enormous amount of coral that has grown on rocky coastlines. In one bay alone, the coral is so diverse, it took years to document. Although our marine life is constantly under threat from development and pollution, it continues to thrive. Those of us who care about it are trying to help save it. Every year the World Wide Fund for Nature (WWF) holds an underwater photographic shootout. This results in fantastic photographs and documents the diverse animal and plant life to be found in Hong Kong waters. Instead of berating the Post Office for trying to show some of Hong Kong's natural beauty, why not join WWF and help Hong Kong's marine life survive and flourish? Perhaps Ms Pang would like to help with a beach clean up or some of the other environmental activities planned for next year.