But to really get it, you need to know what makes these waves so powerful. Tides are the regular rise and fall of sea levels near the coast. They are caused by gravitational forces and the ...

Twice a day, every day, the tides of the River Thames rise and fall, revealing a foreshore that, in the middle of London, has ...

Venice residents watch the Adriatic sea's rise and fall with anxious eyes, keenly aware of how weather can affect its twice-daily ebb and flow. But what is the primary cause of the tides there and ...

Save guides, add subjects and pick up where you left off with your BBC account. Tides are the regular rise and fall of sea levels. The gravitational pull of the Moon and Sun causes the tides.

Then come the king tides. Tides rise and fall by the moon’s gravitational pull. When the sun and moon align, their combined forces create king tides, according to Sea Grant. On Thursday and ...