Which colony might this be?
You need somewhere temperate and pleasant, no nasty diseases and dangerous wildlife or stuff like that. The Falklands is too small and the weather's crap, although I suspect the government may have it on their list of possible places to dump migrants, rather similar to the Scottish isles that are being considered.
The Azores would be great climate wise, but it's not ours (at the moment) and far too small. I suppose if the Spanish were here we could have their place, bit warm though and the streets need sweeping.
America's out, it's full of Americans. New Zealand is too close to the Antarctic and Australia won't do, too close to China and too much desert. So where else is there?