My firxt summer in Alaska, Rap, I worked in a wilderness lodge. Our food was kept cold in freezers by huge ice chunks. Each week we took out the boat and collected small icebergs floating in the water that had broken off the glaciers to refill the freezers. And each week the main table centerpiece was a glimmering light-catching chunk displayed in a large pan.

And we used ice chipped off the chunks for the drinks.

The ice was really, really dense, it didn't melt the way that refrigerator ice does.