On the Cambridge side of the river , you can dash by the Museum of Science , cross over the Longfellow Bridge .
On the Cambridge side of the river , you run along the Esplanade , passing the Hatch Shell where the Boston Pops perform on July 4 .
On the Cambridge side of the river , you can dash by the Museum of Science , cross over the Longfellow Bridge and run along the Esplanade , passing the Hatch Shell where the Boston Pops perform on July 4 .