Ice dune

Alright kiddo, do you know what ice is? It's frozen water. And do you know what a sand dune is? It's a hill made of sand.

Well, an ice dune is like a sand dune, but made of ice instead of sand. It's a big bump or hill made of ice that can form in very cold places, like the North or South Pole.

This happens when the wind blow the snow and ice around and pile it up, just like the wind makes sand dunes in the desert. Over time, the ice builds up and up, until it becomes a big, curving hill. It can have lots of different shapes and sizes, like a giant wave or a twisted spiraling tower.

Some ice dunes can be very pretty to look at, with different shades of blue and white. But they can also be dangerous to travel over, because the ice can crack and break apart. So, it's always better to stay safe and not climb on the ice dunes.