China’s Qiantang River has the world’s largest tidal bore, which can go up to 30 feet high and 25 miles per hour. The strongest bores are formed in the fall, making the region a hotspot for ...

The Severn Bore is a unique phenomenon that occurs when a large tidal surge pushes sea water up the Severn Estuary and into the River Severn or Afon Hafren as it's known in Welsh. The Severn Estuary ...

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He rides what is known as a tidal bore: a surge caused by tidal changes – in this case in the Bristol estuary – that creates a wave large enough to surf. An enthusiastic and close-knit ...

Factors such as wind speed and direction at the time of the high tide determine how big the waves get. The scale of the Severn Bore is graded between five and one, depending on the size.

This is the moment a line of surfers rode a five-star Severn Bore as the rare natural phenomenon emerged in daylight today for first time in five years. The Bore, a tidal wave that occurs in the ...

The moon causes a tidal bore that reverses the flow of the river and slows the earth’s spin each day These Brazilians are about to surf in a very unlikely place: the Amazon River. During full ...

The Severn Bore is an impressive tidal wave of water which works its way up the Severn Estuary over 25 miles between Awre and Gloucester. The spectacle is caused by the tide from the Atlantic Ocean ...