Ichinomiya is a town located in Chiba Prefecture, Japan. As of 31 December 2020, the town had an estimated population of 12,494 in 5643 households and a population density of 540 persons per km2. The total area of the town is 65.38 square kilometres (25.24 sq mi).

Kujūkuri Beach is a sandy beach that occupies much of the northeast coast of the Bōsō Peninsula in Chiba Prefecture, Japan. The beach is approximately 60 kilometres (37 mi) long, making it the second longest beach in Japan. Kujūkuri Beach is a popular swimming and surfing destination for inhabitants of Greater Tokyo. The beach is protected as part of Kujūkuri Prefectural Natural Park.