What would be the best way to create a little circular area of frozen water on top of Uluru?

Enough to get an ice-skater to perform pirouettes, 1-2m radius, 20-25cm depth. or:Enough to get an ice-skater to perform pirouettes, 1-2m radius, 20-2

Enough to get an ice-skater to perform pirouettes, 1-2m radius, 20-25cm depth.

or:Enough to get an ice-skater to perform pirouettes, 1-2m radius, 20-25cm depth.

Tags:uluru,