Thanks all for your comments and feedback - indeed was a great day!
So Clive, what happened next - well he gave it full blast on the burners and just managed to lift it out of the water and onto the bank. I do have a picture of the water dripping off the basket as he did so - but a great end to the day even so!
Apparently when they fly early morning they can sometimes make their balloons just skim the water and 'dance' around the moat - now that would be something to behold for sure.....