Nick,
I fail to see how it can not be fun walking across the dunes 6 times in one day! I still can't believe you didn't just knock it on the head after the mast, or then the sail but I will give it to you for giving it 100% even if it was only for 45 mins. No wonder we didn't see the PONCH!
Next time... Friday?
Maybe next time take some spares across like I did 
or we could just get the hoover craft going
