The B-School (alma mater of GWB and Mittens) is across that foot bridge over the Charles River.
Just from looking at the picture:
1. It must be very cold and Im surprised quite a few people were still in the water;
2. The sun was setting but the bridge was casting no shadow at all;
3. People in the background looked way too small from where the two were standing, which didnt seem too far from the waters edge.
if only someone could go back in time and push that bum in....