When searching in the Loch Ness area, the usual yellow Google Pegman will change to a green Nessie peg-monster, giving users the power to zoom into different areas of the loch.
VisitScotland hopes the global initiative will heighten the profile of Loch Ness and Scotland.
Loch Ness expert Adrian Shine spent a number of days with the Google Street View and Catlin Seaview Survey teams as they performed an operation to photograph above and below the waters.
The launch date coincides with the famous photograph of the “Loch Ness Monster”, the Surgeon’s Photograph, which was published in the Daily Mail on April 21 1934.
Mr Shine said: “The Google project was so cloaked in secrecy, when people asked about the ripples in the loch during the special diving expeditions, for once I had no opinion.
“I’m so proud to have been part of this initiative and I hope people worldwide enjoy exploring Street View to have a look and then be inspired to travel to Scotland to discover this area of magical beauty and natural intrigue.”
VisitScotland chief executive Malcolm Roughead said: “The Street View project is hugely exciting and we are delighted the team at Google have been as inspired about our monster as the hundreds and thousands of visitors who travel to Loch Ness every year hoping to catch a glimpse.”
Research carried out 20 years ago estimated the Nessie phenomenon having an economic impact of £40 million to the Scottish economy. With inflation, this figure would have risen to £60 million by now.
Loch Ness is recognised throughout the world, not only for the mythical icon that is Nessie, but also as an area of outstanding natural beauty.
More information on the Google Street View Loch Ness project can be found at google-latlong.blogspot.co.uk.