As far as the eye can see

One of the items on my (awesome) iPod is a weather report. It updates from my computer and then gives me details of weather now and later. On display, along with UV index and humidity is Visibility. Today, 10kms.
I had no idea that I could see that far, it comes as a big surprise especially as on friday night I almost walked into the Berg River by mistake.
We were caravanning at Berg River Resort and I -contact lens wearer - forgot to take my seeing eye glasses on the trip. So, off I went to the bluties, took out my lenses and did all the necessary.
I had made certain I would be able to find my way back, the love of my life suggested I take my cell phone, Oh ye of little faith! I had set out landmarks so that I wouldn't go wrong in the dark. Big Mistake! If you miss the first landmark, you've had it, I did just that and it was only when I saw the bullrushes that I realised my mistake. I looked around in (near) panic and thankfully saw a green blob heading my way. Blob turned out to be one of our friends and she, good Samaritan, led me back to our van.
And the van wasn't even 10kms away.