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

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.

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.

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.

This phenomenon dates back to the Chinese Han dynasty, which ruled the country from 206 BC until 220 after.