came within about 11km of Hans house but...

[stuck]

...couldn't call in

Spoiler

as I was at 35,000ft at the time. En route to Prague.

Ken

[HansV]

If I had known, I would have waved...

[stuck]

Wasn't it cloudy? It was looking down.

Ken

[HansV]

I don't know at what time you flew over Leiden. It was overcast most of the day, but it was sunny for a couple of hours in the afternoon.

[Rudi]

Ken, if you were working on an MS Office file at that exact moment, you would have felt a sudden jolt of enlightenment to be able to solve ANY issue you had. You should remember that on the trip back home!!

[stuck]

Ken, if you were working on an MS Office file at that exact moment

work is far from my mind. This is all about a short break, just me and my wife.

Ken

[stuck]

It was much clearer on the way back but I couldn't pick out your house Hans. My best guess is that it's somewhere behind the white puffy cloud in this picture.

Ken
edited to replace original image with a post-processed one (you still can't see Hans' house though )

[HansV]

It's hard to make out which part of The Netherlands your photo shows...

[stuck]

As far as I can make out from Google maps I'm looking south and that's the mouth of the Noordzeekanaal in the bottom left, hence my estimate that Leiden is somewhere on the left edge of the picture, about where the cloud is.

Ken

[Rudi]

It looks like that time of day when Hans takes his boat out to do some Haring fishing.
You can see him speeding along to his favourite fishing spot!