Video: Watch the world's longest `river` tidal wave in China

<p style=";text-align:left;direction:ltr">ArabiaWeather.com- A large number of tourists gathered on the banks of the Yangtzekiang River in eastern China last Wednesday, August 13, to witness the longest tidal wave in the world.</p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> <span style="line-height:1.6em">This event is very popular today, as it attracts about a million tourists annually, and this wave takes place in the fall season, but it preceded its date this year.</span></p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> <span style="line-height:1.6em">It is noteworthy that the ninth lunar month is a leap month for the Chinese, which means that tourists may hit another date with this wave after three months.</span></p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> <span style="line-height:1.6em">This phenomenon dates back to the Chinese Han dynasty, which ruled the country from 206 BC until 220 after.</span></p>