At the beginning of 9 Dragons, we see McGarrett jump into the water in the teaser (the very dinky teaser at the beginning). We see him once running from left to right, and then only a few minutes later, from right to left, though these are the same shot. I really don't think that Jack Lord would have been jumping into the filthy dirty water off Hong Kong. When you see "him" going into the water, it is at such an angle that it is probably a stunt man. Once he is in the water, you don't see too much of the background, which makes me think that these scenes were probably shot in Hawaii. When Suzie and her uncle help McGarrett out of the water, you do not see their faces, which is interesting. In the background seems to be an island. I brought this section to someone's attention and she is of the opinion that the island in the background is probably Molokai.