google partnered with catlin seaview survey and the loch ness and morar project to capture the street view shots .
site has launched to mark the 81st anniversary of the ` surgeon 's photograph ' - an image of the mythical monster .
it lets people virtually explore above and beneath the water of the iconic waterway to the southwest of inverness .
there are more searches for loch ness than any other uk institution , and google 's doodle also marks the occasion .