The biggest number of kitesurf spots in the world

It's a spot on the North Sea (Noordzee) so there's tide at this spot.
When the tide is low, you can't feel the bottom at most places, but you can head out from the beach to a nearby sandbar where you can stand. When the tide is high however, the slope of the sea bed is less steep, so you have more room where you can stand (50m max.). The spot isn't a flat water spot (it's on the sea), it also isn't choppy (like many inland spots), but you can have very short breaking waves (nothing surfable: too low and too short for that) near the beach sometimes which can make it somewhat harder to ride. But on the water itself there are typical low sea waves (long waves about 1-2 m high not breaking, not choppy), which makes for a very comfortable ride. And when there's very high tide, the beach slowly fills with water, creating a perfect flat spot (10-20 cm deep) for about 2-3 hours, but these moments are unfortunately rare.