When I bought my 6D towards the end of last year I thought the build in GPS feature was just another gimmick. But after activating it and seeing all the info now just one click away in Lightroom4, I actually regard it as a 'must have' for any travel photographer. I recently traveled to Cape Town and also Plettenberg Bay on the Garden route. I can now go back and precisely see where each photograph was made and things like streets & towns and minor roads are now easy to identify. My wife is now also spared her tedious travelling duties of jotting down in my notebook each and every location, plus a description, of where I stopped and photographed!
Shown here an owl that we spotted in atree just outside our restaurant on Thesen Island in the Knysna Lagoon and the exact position where I stood, clearly shown on the map.
More of my Garden route photographs and a short review of the GPS function can be seen here at:http://thelazytravelphotographer.blogspot.com/2014/03/eos-6d-review-part-2-gps-garden-route.html