Butterfly Valley is Hangzhou's best-kept secret where thousands of tropical butterflies flutter through bamboos valleys. The crystal-clear lake mirroring colorful wings at sunrise creates surreal reflections. Walk along millennium-old stone paths covered in emerald moss, breathing in the poetic aroma described by Song Dynasty poets. Don't miss the world's only captive-breeding center for Jade Swallowtail butterflies - feeding these rare beauties will be your most Instagrammable moment in China!