You have to do this. We went to the one off Farjado. Kayaked out in complete darkness (Pure Adventure was the company and not terribly organized but we got there). So so cool. I heard that some companies let you get in the Bay to swim around but we could not. The guide said it was b/c the perfume, deodorant, lotion, hair gel, etc will eventually disturb the ecosystem of the the bay. makes sense.