Grapevine is one of the better journalistic medium in the country. I (an Icelander) often trust Grapevine more then the traditional media. Especially when covering politics or other serious matters (like refugees), Grapevine shines over the traditional media.

But most of Grapevines content belongs to this cute or fun news category. In this instance, they source the government radio (RÚV)[http://www.ruv.is/frett/flytja-inn-klaka-i-tonnavis], which is definitely a trusted source.

So yes, apparently we do import ice-cubes "by the tonnes". Although, personally, I didn't even know they sold ice-cubes in a plastic bags at the store.