Aurora Tower, Observation tower in Nemuro, Japan

Aurora Tower is an observation tower in Nemuro located along the northeastern coast of Hokkaido, with multiple levels allowing visitors to view the surrounding landscape and sea. The different observation decks provide views of the local environment and showcase the geographical features of this northern coastal region.

Plans for a lookout tower over the Northern Territories began in Nemuro in the early 1980s; after a 1980 third-sector study and a 1981 halt, Tokyo firm Shiken backed by Ryoichi Sasakawa submitted a plan in May 1985. Built for 2.5 billion yen, the Sasakawa Memorial Peace Tower was inaugurated on 19 July 1987 with Sasakawa, Hokkaido deputy governor Hiroshi Yamanaka and mayor Kaiji Oya present. About 300,000 people visited in its first year.

The tower's official name is Bokyō no Tō (Tower of Homesickness), and it was originally called Sasagawa Memorial Peace Tower after Sasagawa Ryoichi, who backed its construction. In its first year, fishermen's wives climbed to the observation deck and used portable radios to warn their husbands offshore about approaching Soviet patrol boats.

The tower has been closed since 1 January 2020, when coronavirus made visitors unlikely; as of 2021 it remains shut, with electrical, water and elevator maintenance suspended. Access is by Nemuro Kotsu bus on the Nosappu line from Nemuro Station, 44 minutes to the Nosappu-misaki stop.

In the tower's first year, about 300,000 people visited; by the years before 2020, annual admissions had fallen to 8,000–10,000. The attached building that once housed a restaurant is now deteriorating and cannot be removed. Since 1 January 2020 the tower has been closed, with electrical, water and elevator maintenance suspended.