I'll start off with the Severn Bore, a bit limp compared to some, but the largest one in the UK nevertheless. The Severn estuary has the 2nd highest tidal reach in the world after the Bay of Fundy in Canada.

[YOUTUBE]http://www.youtube.com/watch?v=0jtkyuuMgVQ [/YOUTUBE]


Salmon River, Nova Scotia, Canada.

[YOUTUBE]http://www.youtube.com/watch?v=UbrsllBhXY0 [/YOUTUBE]


Hainang, China.

[YOUTUBE]http://www.youtube.com/watch?v=8TB8PD39bA8 [/YOUTUBE]