With this summer's record-breaking heat wave in mind, I aim to find the longest shadow in Tokyo. Alas, I start out at high noon, when even Tokyo Skytree, the world's tallest broadcasting tower, offers zero refuge. Once outside the air-conditioned environs of Oshiage Station, I am left at the mercy of the scorching sun.

A canal flows past Skytree on the northern edge of the Narihira neighborhood and, under a bridge that spans the water, I spy a makeshift cave of shade. Descending steps to the canal side, I find the air thick with the algal odor of a neglected fish tank.

Fresh fish: Fisherman Tomoyoshi Ogaki shows off the yellowfin goby he caught in one of Narihira
Fresh fish: Fisherman Tomoyoshi Ogaki shows off the yellowfin goby he caught in one of Narihira's canals. | KIT NAGAMURA