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8 Lakes in Saitama worth your time

Japan Gems

8 Lakes in Saitama, with what to see and how to get there.

Saitama has 8 lakes on Japan Gems. Below are the 8 we can tell you the most about — each one written up in English from Japanese sources, with what to see and how to get there. See all lakes in Saitama.

01

Haraichi Swamp

SAITAMA · PLACE 原市沼

Haraichi Swamp

A restored wetland sanctuary featuring ancient lotus flowers and diverse wild bird populations managed by a local conservation group.

What it is

  • A wetland area located on the border of Ageo and Ina cities.
  • A conservation site managed by the Haraichi Swamp Lovers Association.
  • A habitat for wild birds featuring ancient lotus flowers reintroduced from Gyoda City.
  • A natural space situated near the ruins of the Ina Clan Residence.

What to see

  • Ancient lotus flowers blooming across the restored swamp area.
  • Various species of wild birds that inhabit the wetlands.
  • The Haraichi Swamp River which serves as the primary water source.
  • Three flood control basins currently under development at the site.
  • Shinkansen trains passing along the northern end of the marsh.

When to go

  • Visit from mid-July to mid-August to see the lotus flowers in bloom.
  • Arrive in the morning for the best views of the opening flowers.

Getting there

  • The site is a five-minute walk from Shonam Station.

Read more about Haraichi Swamp

02

Lake Miyazawa

SAITAMA · PLACE 宮沢湖

Lake Miyazawa

An artificial lake in Saitama featuring a Moomin-themed park, Nordic village, and hot spring facilities within a natural park.

What it is

  • An artificial lake in Hanno created by an earth dam completed in 1941
  • Located within the scenic borders of Okumusashi Prefectural Natural Park
  • Home to the Nordic-themed Metsä Village and Moominvalley Park since 2018 and 2019
  • Serves as the primary water source for the Koaze River

What to see

  • An earth dam standing 18.5 meters high and 240 meters long
  • The Moominvalley Park theme park located directly on the lakeshore
  • Metsä Village which offers a Nordic-style atmosphere and shopping
  • Kirari Bettei, a hot spring facility situated at the site

Getting there

  • Buses run regularly from Hanno and Higashi-Hanno stations to the lake
  • The site is located 15 minutes from the Sayama-Hidaka Interchange by car

Read more about Lake Miyazawa

03

Lake Kamakita

SAITAMA · PLACE 鎌北湖

Lake Kamakita

A scenic reservoir in Saitama offering seasonal nature views, fishing, and boating within the Prefectural Kuroyama Nature Park.

What it is

  • A public works reservoir completed in 1935 officially named Yamane Reservoir.
  • A center core type earth dam managed by the Iruma Daiichi Land Improvement District.
  • A recreational site also known as Otome Lake located in Moroyama Town.
  • A destination for outdoor activities situated within Prefectural Kuroyama Nature Park.

What to see

  • Yoshino cherry trees that bloom along the water in spring.
  • Maple trees that provide colorful foliage during the autumn season.
  • Crucian carp fishing spots and rental boats for use on the lake.
  • Local restaurants serving specialty dishes made from wild boar-pig hybrids.

Getting there

  • The lake is five kilometers away from Higashi-Moro and Moro Stations.

Read more about Lake Kamakita

04

Yamaguchi Reservoir

SAITAMA · PLACE 山口貯水池

Yamaguchi Reservoir

An artificial lake known as Sayama Lake, offering historic civil engineering and scenic views within a prefectural natural park.

What it is

  • An artificial lake commonly known as Sayama Lake completed in 1934
  • A water supply facility for Tokyo managed by the Tokyo Metropolitan Bureau of Waterworks
  • A designated Civil Engineering Heritage site located within Sayama Prefectural Natural Park
  • A reinforced structure that underwent upgrades for air raid protection and earthquake resistance

What to see

  • The ruins of Negoya Castle situated on the northern shore of the reservoir
  • The expansive artificial lake and surrounding natural park scenery
  • Historic civil engineering features recognized for their heritage value

Getting there

  • A seventeen minute walk from Seibu-Kyujo-mae Station

Read more about Yamaguchi Reservoir

05

Arakawa No. 1 Retention Basin

SAITAMA · PLACE 荒川第一調節池

Arakawa No. 1 Retention Basin

A massive flood control basin and reservoir featuring Lake Saiko, sports facilities, and a major expressway bridge.

What it is

  • A flood control facility spanning from Sakura Ward to Toda City.
  • A retention basin with a storage capacity of thirty-nine million cubic meters.
  • A project completed in 2003 to manage water from the Arakawa and Kamogawa rivers.
  • The site contains a reservoir known as Lake Saiko.

What to see

  • Lake Saiko, a reservoir completed in 1997 located within the basin.
  • The Yakult Toda Baseball Stadium situated on the grounds.
  • The Tokyo Gaikan Expressway crossing the area via Sakitama Bridge.
  • An eight kilometer stretch of engineered basin landscape.

When to go

  • Water levels are lowered by over two meters from July to September.
Official site
www.ktr.mlit.go.jp

Read more about Arakawa No. 1 Retention Basin

06

Ōsagami Reservoir

SAITAMA · PLACE 大相模調節池

Ōsagami Reservoir

A massive 40-hectare flood control reservoir and recreational lake that protects the surrounding Koshigaya Lake Town from heavy rains.

What it is

  • A 40-hectare reservoir built by the Urban Renaissance Agency for flood protection.
  • The facility diverts water from the Moto-Arakawa River into a storage basin.
  • Completed in 2014, the project cost approximately 34.7 billion yen.
  • The lake is nicknamed Sakura Lake and holds naming rights held by Aeon Mall.

What to see

  • A large body of water with a storage capacity of 1.2 million cubic meters.
  • Portions of the pond area designated for public use and recreation.
  • The surrounding town built on elevated ground for flood safety.
  • Connections to the Moto-Arakawa and Naka rivers.

Read more about Ōsagami Reservoir

07

Naguri Lake

SAITAMA · PLACE 名栗湖

Naguri Lake

An artificial lake created by the Arima Dam in 1986, offering outdoor recreation and nearby hot springs in Saitama.

What it is

  • An artificial lake in Hanno City created by the Arima Dam.
  • The first dam managed by Saitama Prefecture, completed in 1986.
  • A multi-purpose dam facility located on the Arima River.

What to see

  • The Arima Dam structure and the surrounding lake scenery.
  • The Naguri Canoe Workshop situated near the water.
  • The Arima Valley Fishing Ground located within the area.
  • Sawarabi no Yu hot spring located in the immediate vicinity.

Getting there

  • Take a bus from Hanno Station to the lake area.
  • The site is accessible from the Sawarabi no Yu bus stop.

Read more about Naguri Lake

08

Lake Miyuki

SAITAMA · PLACE 行幸湖

Lake Miyuki

A five-kilometer regulating reservoir and park featuring a massive fountain, canoe courses, and a high-speed railway bridge overhead.

What it is

  • A first-class river reservoir officially named the Gongendo Regulating Reservoir.
  • Completed in 1992 for flood control and water supply management.
  • A public facility managed by Saitama Prefecture spanning 5.18 kilometers.
  • Site of the 2004 National Sports Festival canoe competitions.

What to see

  • The Gongendo Great Fountain which shoots water 36.6 meters into the air.
  • A dedicated canoe racing course and functional boathouse facility.
  • The Tohoku Shinkansen railway bridge crossing directly over the water.
  • Gongendo Park which was completed at the site in 2007.

Read more about Lake Miyuki

See all 8 lakes in Saitama