This is an excellent feature of a great park. You cannot appreciate its scale without getting up close. And the height of it varies daily. I don't know why. Sometimes it's less than half its max.
On a hot day, you can make a lap and if there's a breeze, you'll get a great, cooling mist. Even when it's not windy, you can feel the coolness that the evaporative effect creates. A bit of cool science.