'70s Commercial
There was a commercial that ran for a short time that had a jungle setting. This was in the early to mid '70s. In it there was a girl who dove into the water. Naked. Just a flash as she went by. Then you saw underwater views where she came swimming by, and she was sort of a silhouette, almost like it was an opening to a Bond film. i can't begin to remember the product, but I believe it was some sort of product for personal hygene....maybe shampoo? I thought of Herbal Essence, but I don't think that's it.
I am in the Washington DC area, if that helps.