Lake Champlain is home of a legend -- Champ, the American Loch Ness monster. The serpent was just honored with an Adirondack Coast marker in Port Henry. Lake Champlain is home to clear water, a diverse ecosystem, and a seldom seen lake monster. "They are seen as just vertically undulating," said Katy Elizabeth, one of the few who claims to have spotted Champ. Champ's first sightings date back to the 1800s, and there is a famous photo of him snapped in 1977. He's elusive and protected. Laws in New York and Vermont protect him from predators and encourage people to report sightings.