Visitors would surely be captured by the enchanting and serene scene of Nam San Wai. At low tide, the area between Shan Pui River and Kam Tin River becomes the feeding ground of birds. When going further, a luxurious growth of reeds and mangroves could be seen. It is only here at Shan Pui River that you can cross a river by sampan. In Nam Sang Wai, hundreds of birds are attracted to roost here and many visitors come here for taking photo purposely.曾因發現鱷魚而聲名大噪的南生圍，是個極具特色地方，香港所剩無幾的橫水渡，可在南生圍山貝河找到，很多遊客便是因山貝河橫水渡慕名而來。蜿蜒的山貝河、茂密的蘆葦叢及紅樹林更吸引到大批的攝影愛好者到訪，假日有不少遊人前來觀鳥。