Hamanaka 浜中町

• Hamanaka: a Japanese translation of the Ainu ota-noske (オタノㇱケ), "the middle of the sandy beach"¹⁸. Kushiro Subprefecture puts the original spot near present-day Sakakimachi (榊町)¹. Place-name scholar Yamada Hidezō, cited by Japanese Wikipedia, puts it just north of Kiritappu town. He adds that Hamanaka Station was built inland when the railway came, so today the name mostly means the area around the station⁸.
• Kiritappu (霧多布): from ki-ta-p (キタプ), "place where reeds are cut". Nagata Hōsei recorded that reeds were once cut on the island. The Hokkaido Government rates this reading as fairly certain (level B)¹⁹. The kanji mean roughly "much fog", which fits the coast, but they were chosen for sound²⁰.
• Other local names in the Hokkaido Government's Ainu place-name list:
  • Biwase (琵琶瀬) from pipa-sey, "shells of the pipa mussel" (level B)²¹.
  • Chanai (茶内) from ican-nay, "river with salmon spawning beds" (level B)²².
  • Chirippu (散布) perhaps from ciwrup, "short-necked clam", though this is uncertain (level C)²².
  • Anebetsu (姉別) from ane-pet, "narrow river". The town history gives the same meaning²³.
  • Kenbokki Island (嶮暮帰島) from kene-pok, "below the alders"¹⁹.
  • Shirishizu (後静) from sir-sut, "foot of the hills". It was first the name of a small cape west of Poroto²⁴.
  • Poroto (幌戸) from poro-to, "big marsh". Honporoto (奔幌戸) is "little Poroto"²⁵.
• Urayakotan (羨古丹): the town translates it as "village of fish weirs and nets"²⁶.

• Prehistory: during the warm Jōmon period about 6,000 years ago, the sea reached far inland here. As sea levels fell, lakes were left behind coastal dunes and slowly filled with peat, forming the Kiritappu Wetland²⁰. Sand layers in the peat record huge tsunamis that struck the eastern Hokkaido coast again and again over the past 4,000 years. A core sample dug up beside MG Road is on display at the Wetland Center²⁷.
• Early Japanese contact: Japanese first reached the area in the Kan'ei era (from 1627). In 1701 (Genroku 14) the Matsumae domain split the Kiitappu trading post off the Akkeshi post. The town counts this as its beginning⁶. The town's fisheries overview gives the year as 1791 beside "Genroku 14", which looks like a misprint⁹. Kelp and herring fishing began at Biwase in 1809 with about 20 people⁹.
• 1831 foreign landing: the British whaler Lady Rowena under Bourn Russell, based in Australia, anchored at Urayakotan. Guards from the Akkeshi post clashed with its crew. One of their men and one Ainu man were taken captive, then freed with a letter and food before the ship sailed⁸²⁶.
• Meiji settlement: the Saga domain took charge of the district in 1869 and settled 12 farming households⁶. In 1870 the fishery operator Sakaki Tomiemon (榊富右衛門) brought 29 fishing households (81 people) from Mutsu, Fukuyama (Matsumae) and Hakodate⁹. Japanese Wikipedia dates his settlement at Ashirikotan, today's Sakakimachi, to 1869⁸. Herring catches peaked in 1908 and collapsed after 1921. They returned briefly in the 1930s and were gone for good by 1953. Iodine was extracted from kelp from 1873, and production boomed in 1914 for medicines and gunpowder additives⁹.
• Railway and inland settlement: the railway now called the Nemuro Main Line reached Atsutoko in 1919. Chanai Station opened on 25 November 1919²⁸. Farm settlers began arriving around 1917–18, and 114 farming households had settled by 1923⁶. The history of the town's light railway says a group of about 114 households took up land on the Chanai plain in 1924, and describes them as refugees from the Great Kantō Earthquake²⁹.
• The Chanai light railway (1927–1972): a colonial light railway (殖民軌道) ran from Chanai into the farm districts. Horses pulled it at first. After a severe late frost in 1932, the government pushed farmers toward livestock, and the line became a milk route. It took cans to Snow Brand and Meiji collection points at Chanai. Diesel locomotives replaced horses from 1957. It stopped running on 31 March 1972, the last of Hokkaido's light railways to close²⁹. In 1955 the Chanai plain was designated a zone for intensive dairy farming⁶.
• Disasters: a fire at the Ōhara Theater in Chanai killed 42 people in 1951, many of them schoolchildren⁸. The 1952 Tokachi-oki tsunami killed 3 people and the 1960 Chile tsunami killed 11⁷. After that the coast was ringed with seawalls⁶.
• Town era: Hamanaka became a town in 1963. A national farmland development project ran from 1970 to 1991⁶. The agricultural co-op opened a dairy technology center in 1981³⁰. Takanashi Milk opened its Hokkaido plant in 1982 and began making Häagen-Dazs in Japan through a joint venture in 1984³¹.
• Conservation: local volunteers started renting private wetland to protect it in 1986. Their group became an NPO trust in 2000²⁰. The Kiritappu Wetland Center opened on 1 May 1993²⁷. The wetland was listed under the Ramsar Convention in June 1993 and became Hokkaido Heritage in 2001⁷.
• 2011: the Tōhoku tsunami reached 2.6 m at Kiritappu Port. The floodgates were shut by remote control and evacuation orders went out, and no one was killed or hurt. Damage came to ¥1.85 billion, mostly to boats, ports and fishery facilities⁹⁶.
• Recent years:
  • 2012: the Lupin III festival began¹⁸.
  • 2016: Tōfutsu-misaki Lighthouse was named a "Lighthouse of Love" (恋する灯台)³². Sea otter sightings began to rise around the same time¹⁶.
  • 2019: Monkey Punch died on 11 April³³.
  • 2020–21: a new town hall on the Yufutsu (湯沸) hill, above the tsunami flood zone, was completed in December 2020 and opened in January 2021⁶⁸. A sea urchin hatchery opened in March 2021, and the wetland became part of a quasi-national park on 30 March 2021. In autumn 2021, Japan's first red tide of Karenia selliformis hit the Pacific coast of eastern Hokkaido and damaged fish stocks⁹.
  • 2024: Hamanaka's kelp harvest fell to about 614 t, the lowest since records began in 1975⁹.
  • 2026: the first of four planned tsunami evacuation towers opened at Biwase in February³⁴.

• Location: the easternmost municipality in Kushiro Subprefecture⁶, about 80 km east of Kushiro and 64 km by road from Nemuro³⁵. The coast runs for about 67 km and mixes sand beaches, cliffs and offshore islands⁹.
• Kiritappu town: built on a sandbar (tombolo) that links the mainland at Bokibetsu (暮帰別) to the former island of Yufutsu (湯沸)⁸. The Kiritappu Peninsula is a flat-topped plateau 40–60 m high, with Kiritappu Cape at its eastern tip and Azechi Cape at its western tip³⁶³⁷.
• Bays, islands and lagoons:
  • Hamanaka Bay (浜中湾) and Biwase Bay (琵琶瀬湾)³⁷.
  • Kenbokki Island (嶮暮帰島), Kojima (小島) and Gome-jima (ゴメ島)³⁷.
  • Hichirippu-numa (火散布沼), a 3.78 km² brackish lagoon⁵³⁸, and Mochirippu-numa (藻散布沼)⁹.
• Kiritappu Wetland: about 9 km long and 3 km deep, running behind the coast²⁰.
  • The northern half has more than 30 ponds lined up between old dune ridges. In the southern half, five rivers branch out on their way to the Pacific³⁹.
  • The peat is 0.7–2.6 m thick. The wetland includes low reed-and-sedge fen, mid-level flower meadows, raised sphagnum bog and salt marsh³⁹.
  • The Biwase River (琵琶瀬川) winds through the middle⁴⁰.
• Inland: a gently rolling plateau of dairy farms, crossed from east to west by National Route 44 and the railway⁶⁸.
• Protected areas: Akkeshi-Kiritappu-Konbumori Quasi-National Park (厚岸霧多布昆布森国定公園), created on 30 March 2021⁹.
• Climate: figures are from the JMA station at Sakakimachi, 1991–2020 normals⁴¹.
  • Mean annual temperature is 5.8 °C. January and February average −5.3 °C. August averages 17.3 °C, with a mean daily high of only 21.1 °C.
  • Precipitation is 1,033 mm a year. There are 1,914 hours of sunshine: March is sunniest and July, the fog month, is dullest.
  • Records: 35.5 °C on 7 August 2010 and −26.0 °C on 24 February 1978⁴².
  • Sea fog often covers the coast from June to August. The town describes winter snowfall as light¹⁶.

• Structure: at the 2020 Census, 50.25% of Hamanaka's 3,636 workers were in farming, fishing or forestry: 30.9% in fishing and 19.0% in farming. That is the highest share of any municipality in Kushiro Subprefecture⁹.
• Fisheries:
  • In 2023 the town landed 4,507 t worth ¥4.18 billion. By value, kombu made up 42%, sea urchin 20% and octopus 10%. By weight, kombu was 28% and sardines 22%⁹.
  • Catches peaked at 44,167 t in 1988 during the sardine boom⁹. The 2024 total was 4,338 t worth ¥4.21 billion⁴³.
  • Kelp is in trouble. The number of kelp harvesters (着業戸数) fell from 700 in 1975 to 393 in 2023. In 2024 the harvest dropped 52% to about 614 t and its value fell 39% to ¥1.07 billion. Both co-ops cancelled the early-season saomae kelp harvest: for Hamanaka co-op it was the first time in two years, and for Chirippu co-op the first in 26⁹.
  • Fishing is organized by two co-ops, Hamanaka (浜中漁協) and Chirippu (散布漁協). In 2026 their kelp seasons were set to open on 1 July and 10 July, and the saomae harvest was cancelled again⁴⁴.
  • The town's sea urchin hatchery raises about 1.5 million young urchins a year for release into the wild and 1.5 million for cage farming⁴⁵.
• Dairy:
  • In 2025 the town had 25,801 dairy cattle on 160 farms and 2,409 beef cattle. Milk and livestock income was about ¥14.9 billion in FY2025, from 14,700 ha of pasture¹⁴.
  • Kushiro Subprefecture counted 25,129 dairy cattle and 95,322 t of milk in 2024 for JA Hamanaka and Hamanaka Rakuno combined⁴³.
  • JA Hamanaka (浜中町農協) says Häagen-Dazs engineers from the United States chose Hamanaka because no other area controlled milk quality from the farm up to American standards¹⁵. It runs its own lab to test soil, feed and milk, opened in 1981³⁰. Its dairy information system, set up in 2002, records each cow's identity, breeding, milk tests, shipments and veterinary treatment, so production history can be traced. The co-op says it is the only one in Japan with traceability of this kind¹⁵.
  • Japanese Wikipedia lists Takanashi Milk's Hokkaido plant as a company based in the town⁸.
• Tourism: about 300,000 visitors a year, drawn mainly by the wetland and the cape⁶.
• Population:
  • The population peaked at 11,915 in 1960 and had fallen to 5,507 by 2020⁷. It fell 9.1% between 2015 and 2020² and 6.6% between 2020 and 2025⁴.
  • The number of foreign residents rose from 267 to 303 in the year to August 2026³.
  • To keep farms and fishing boats in the family, the town pays successors (new graduates or people returning home) ¥50,000 a month for up to three years. It also runs a training ranch for newcomers to dairy farming⁷.
• Furusato nozei: the town received ¥1.31 billion from 69,862 donations in FY2023. It used the money on fisheries, the Wetland Center, health care and schools⁴⁶.

• Monkey Punch Collection: a free exhibition at the Hamanaka General Culture Center (浜中町総合文化センター), Kiritappu Nishi 3-jō 1-47. It includes AGITO, a recreation of the artist's workroom, and a real Fiat 500 like Lupin's⁵⁹. The streets of Kiritappu and Chanai have signs for pretend bars named after the characters, such as PUB FUJIKO, JIGEN'S BAR and Izakaya Goemon⁶⁰.
• Chanai Station: the old station office is now the Fure-chau-kan (ふれ茶内館), which displays photos and documents from the town light railway²⁸.
• Legend of Namida-misaki (涙岬): in the herring days, the daughter of a Kiritappu fishing boss (網元) fell in love with a young man from Akkeshi. His boat ran aground here in a storm on the way to Kiritappu, and he drowned. Her weeping face is said to show in the cliff, and the nearby Tateiwa rock is said to be him struggling toward shore⁶¹.
• School: Kiritappu High School (霧多布高校) is run by the town. Its "Hamanaka Studies" course teaches students about their own area⁷.

• Before the trading post, the coast was Ainu land. Its main trace today is place names: Kiritappu, Biwase, Chanai, Anebetsu, Kenbokki, Poroto and Chirippu are traced to Ainu words for reeds, shellfish, salmon beds, rivers, alders and marshes, though the Chirippu reading is uncertain (see Name origin)^1921222325.
• The town bird's name, etopirika (エトピリカ), is also Ainu¹⁰. An Ainu man was among the two people seized during the 1831 Lady Rowena incident at Urayakotan⁸.
• The sources consulted for this entry do not document any Ainu cultural facility, excavated site or living tradition in Hamanaka today.

None found.

• Monkey Punch (モンキー・パンチ, Katō Kazuhiko, 1937–2019): the manga artist who created Lupin III. He was born in Hamanaka Village to a fishing family and went to Kiritappu High School. As a teenager he helped the local doctor Michishita Shun'ichi with X-rays³³.
• Michishita Shun'ichi (道下俊一): served for 47 years from 1953 as the doctor at the Kushiro Red Cross Hospital's Hamanaka clinic. His story was told on NHK's Project X⁸.