Round trip from Narihira Bridge to Nagasaki Bridge (Oyokogawa Waterfront Park)

Takasago stable (髙砂部屋 or 高砂部屋, Takasago-beya) is a stable of sumo wrestlers, one of the Takasago group of stables. It is correctly written in Japanese as "髙砂部屋", but the first of these kanji is rare, and is more commonly written as "高砂部屋".

Kokonoe stable (九重部屋, Kokonoe beya) is a stable of sumo wrestlers, one of the Takasago group of stables. It was formed in 1967 and until 2021 was located in Ishiwara, Sumida, Tokyo. As of January 2023 it had 26 sumo wrestlers, four of whom are of sekitori rank. It is the most successful stable in terms of total yūshō won by its wrestlers, with 52.

Azumazeki stable (東関部屋, Azumazeki-beya) was a stable of sumo wrestlers, part of the Takasago group of stables. It was founded in February 1986 by the Hawaiian born Takamiyama of the Takasago stable in Higashi–Komagata, Sumida, Tokyo. It was the first stable ever to be run by a foreign-born coach. Azumazeki's first sekitori was Akebono, also from Hawaii, in 1990, who subsequently reached the yokozuna rank.

Ōshima stable (大島部屋, Ōshima-beya), formerly known as Tomozuna stable (友綱部屋, Tomozuna-beya), is a stable of sumo wrestlers, part of the Isegahama ichimon or group of stables. As of January 2023, it has seven wrestlers. The current version of the stable was established in January 1961 by former komusubi Tomoegata.

The Tobacco and Salt Museum (Japanese:たばこと塩の博物館) is located in Sumida-ku, Tokyo. It was established in 1978 and is run by Japan Tobacco. The museum was originally located in Shibuya but, in 2015, it was relocated to Sumida. The museum has about 38,000 artifacts that show the history of tobacco and salt both from Japan and overseas.