Shadows disappear because the Sun turns back

On June 21, 2006, it is the Summer Solstice. The sun goes no further north after it arrives in Mojiang at noon. It turns around to south, smiling like a baby. When the Sun is shining plumb at the tropic of cancer,the Hani people celebrate the turning of Sun with their own way. The tourists and the guests gathered at the Yuanguiyang tower which is called the symbol of tropic of cancer in the morning. They were trying to get a best position to enjoy this miracle moment when the sun is above and the shadow disappears. It is from that moment, the summer in northern hemisphere begins.