I have friends who swear they have seen it, so I am undecided. I have not seen it personally. I just think its a funny line. The Okanagan is a very large lake. Deep and full of creveces and caves, so who knows...
It does bring in the tourists though... oops shh, quiet... I never said that.
It's real, come and see it. Stay at my B&B, bring American money... :o)