Giant shark sparks 'megalodon' fears after tourists scream as it circled cruise ship The shark can be seen swimming slowly in a circle near the surface of the water as tourists rush to the side of the boat and clamour to get a closer look Updated The video will auto-play soon8Cancel Play now Join thousands of others in getting the stories that matter to you sent straight to your inbox.Invalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice.