The BBC reports that an extensive investigation of Loch Ness by a BBC team, using 600 separate sonar beams, found no trace of any sea monster in the loch. Loch Ness is a popular tourist attraction because of the rumors surrounding an alleged monster or plesiosaur populating the lake (see Loch Ness Monster). The BBC team stated that it is now conclusively proven that Nessie does not exist.
//news.bbc.co.uk/2/hi/science/nature/3096839.stm