In 2006, two fisherman videotaped what they believe to be Champ, the so called monster in lake Champlain.
Info on Champ
Many are calling it the most compelling footage of any cryptid out there. I for one, have to agree that the footage is fairly unique in a sense that it does show a semi-clear creature underwater that maneuvers without visible fins. From the still frame of the video, it sort of resembles a Plesiosaur.
With technology becoming more affordable and equipment becoming more easy to handle and carry, one can only wait for the day some legend is proven.