If you're looking for Captain Kidd's treasure, we may have it.
see http://www.activemind.com/Mysterious...and/story.html

Ah yes. Oak Island.

Nothing to do with Kidd, I'm afraid. Remember, he had only dozen men with him
when he left Madagascar. A project similar to Oak Island would have required a
massive workforce at the beginning of the
18th Century.

Furthermore, there was no reason to stash
treasure. The majority of any prize was due and payable to the crew. The east
coast of Colonial North America was filled with shopkeepers, etc, who were only
too glad to do business (at special rates, of course), with voyagers on
account. It would be easier to spend it than to hide it.
:-)