Wow chuck not sure how you got all that info but I just got this pic of the web! And anyway that would be cheating :o).
No not Balmoral.
Clue: dib dib dib
Yep thats the one Dotty
Brownsea Island situated in Poole Harbour.
http://en.wikipedia.org/wiki/Brownsea_Island
where Baden Powell took several young boys to an island for a bit of an adventure and some skinny dipping (Blimey wouldn't have happend today).
Over to you.