In all it took Jacques (6 yrs) and I four hours. I suspect that if I was on my own  it would have taken 5 hrs, the main problem being the 5cm snow depth we started with. Jacques was a top snow collector.

We used a genius kit from Grand Shelters in the States. Without this we would have had no hope! They estimate that in ideal conditions it would take two adults 2hrs to finish an igloo. I believe them.

The various stages are visible here, the way the “Ice-Box” forms the bricks is clearly visible. More pictures can be found here.

For those interested in why this igloo is slightly taller and pointier than the traditional igloo, have a look at this link. And some information on the traditional igloo.