They may have gone out on the water after the Classic and Expo...they do that often to show what the anglers where fishing.
Here are more REAL IMAGES
Old Rail Road Bed with Ties....see all the fish and baitfish????
Zoom Version!
Here is the SI Image that was used when Contour Mode was introduced...the depth is not on top of the track like the 360 Imaging is but can be used for comparison.
Contour Mode Turned On...
More to Come...