Tokyo Skytree is the backdrop for Sumida River, Tokyo's most famous and storied river. This part of the river is near Asakusa. In mid-April, longtime rivals Waseda University and Keio University hold their annual Sokei Regatta (早慶レガッタ).

Sokei Regatta (早慶レガッタ) is the Waseda-Keio Regatta held here on Sumida River. (At Keio University, it's usually called the "Keio-Waseda Regatta.")