While we were in Hawaii I decided to take an evening stroll down Waikiki around 6:00pm. I wasn't exactly sure what I wanted to take a picture of, other than a picture of the beach. As I was walking along the beach I saw this rock boardwalk that was about 100 ft long and went out above the water. I walked out to see what kind of shots I could take. I adjusted my camera's exposure and took my first shot with a 16-50mm lens. I decided I wanted to take a long exposure photo in or