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6 Lakes in Ibaraki worth your time

Japan Gems

6 Lakes in Ibaraki, with what to see and how to get there.

Ibaraki has 6 lakes on Japan Gems. Below are the 6 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 Ibaraki.

01

Sanuma Lake

IBARAKI · PLACE 砂沼

Sanuma Lake

A scenic agricultural reservoir and park in Ibaraki featuring seasonal flowers and a unique Y-shaped pedestrian bridge.

What it is

  • An agricultural reservoir in Shimotsuma City irrigating 1800 hectares of rice paddies.
  • A designated top 100 reservoir and one of the 100 Landscapes of Ibaraki.
  • A 55-hectare body of water surrounded by the Sanuma Wide Area Park.
  • A recreational site featuring a tourist exchange center on the south shore.

What to see

  • The Sanuma Ohashi, a unique Y-shaped bridge connecting the east and west shores.
  • Approximately 350 cherry trees representing 50 different varieties.
  • A large garden containing about 29,000 Japanese irises.
  • A six-kilometer walking path around the circumference of the lake.

When to go

  • Visit in spring to see the cherry blossoms in bloom.
  • Go during June to see the Japanese irises at their peak.

Getting there

  • Take the Kanto Railway Joso Line to Shimotsuma Station.
  • The site is accessible by car via National Route 125.

Read more about Sanuma Lake

02

Lake Ushiku

IBARAKI · PLACE 牛久沼

Lake Ushiku

A shallow lake in Ibaraki known as the birthplace of unadon, featuring migratory swans and a scenic lakeside road.

What it is

  • A shallow lake in Ryugasaki City belonging to the Kokai River tributary system
  • The historical birthplace of the popular Japanese eel dish known as unadon
  • A scenic area that served as a filming location for the film series Otoko wa Tsurai yo
  • The former home of painter Ogawa Usen who lived on the northern shore

What to see

  • A large body of water with a circumference of approximately twenty-five kilometers
  • The Unagi Kaido road along the eastern shore lined with eel restaurants
  • Migratory swans that gather on the water during the colder months
  • Views of the shoreline from the JR Joban Line and Route 6

When to go

  • Winter is the best time to see the group of forty migrating swans

Getting there

  • The lake is located near Ryugasaki-shi Station and Sanuki Station on the JR Joban Line

Read more about Lake Ushiku

03

Hinuma

IBARAKI · PLACE 涸沼

Hinuma

A Ramsar-protected brackish lake in Ibaraki known for its diverse birdlife, rare damselflies, and recreational outdoor activities.

What it is

  • A large brackish lake spanning Ibaraki Town, Hokota City, and Oarai Town.
  • A registered Ramsar Convention wetland since 2015 for its ecological importance.
  • A major production site for Yamato shijimi clams and a natural retarding basin.
  • A habitat for over 100 fish species and the endangered Hinuma damselfly.

What to see

  • Hinuma Nature Park located on the northern shore of the lake.
  • White-tailed eagles that use the area as a wintering ground.
  • Local fishermen harvesting Yamato shijimi clams from the water.
  • Active areas for windsurfing, camping, and recreational fishing.

When to go

  • Winter months to observe visiting white-tailed eagles.
  • Summer for camping and windsurfing on the lake surface.

Read more about Hinuma

04

Lake Senba

IBARAKI · PLACE 千波湖

Lake Senba

A gourd-shaped freshwater lake in Mito serving as a scenic wetland habitat and a historic moat for Mito Castle.

What it is

  • A freshwater dammed lake formed by sediment from the old Sakura River.
  • A natural moat once used by the Mito Domain to fortify Mito Castle.
  • An important wetland habitat designated by the Ministry of the Environment.
  • A central feature of the Kairakuen Park landscape in Ibaraki Prefecture.

What to see

  • A three-kilometer walking path surrounding the gourd-shaped perimeter.
  • Three large fountains and one artificial floating island within the water.
  • Wintering waterfowl including various species of ducks and swans.
  • Views of the shallow lake which maintains an average depth of one meter.

When to go

  • Winter months to observe the migratory birds and resident swans.
Official site
www.city.mito.lg.jp

Read more about Lake Senba

05

Lake Sotonasakaura

IBARAKI · PLACE 外浪逆浦

Lake Sotonasakaura

A six square kilometer freshwater lake in Ibaraki Prefecture offering traditional sightseeing boat trips within a quasi-national park.

What it is

  • A freshwater lake in southeastern Ibaraki Prefecture covering six square kilometers.
  • Part of the Suigo-Tsukuba Quasi-National Park and the Kasumigaura water system.
  • Historically known as Nagareumi and officially classified as a Class A river.
  • Separated from the neighboring Uchinasakaura by a levee built in 1893.

What to see

  • Traditional sightseeing sail boats operating on the open water.
  • The Hitachi River Watergate which maintains the lake's freshwater status.
  • Local wildlife including wakasagi, icefish, carp, and eels.
  • Expansive views of the water reaching depths of nine meters.

When to go

  • Summer and autumn to ride the seasonal sightseeing sail boats.

Read more about Lake Sotonasakaura

06

Lake Kasumigaura

IBARAKI · PLACE 霞ヶ浦

Lake Kasumigaura

Japan's second largest lake offers traditional sail fishing boats and a designated national cycle route through a scenic quasi-national park.

What it is

  • The second largest lake in Japan, located in southeastern Ibaraki Prefecture.
  • A designated Quasi-National Park consisting of five main water bodies including Nishiura and Kitaura.
  • A freshwater lake since 1963 that serves as a source for agriculture and industry.
  • A major fishery producing smelt, icefish, carp, and freshwater prawns.

What to see

  • Traditional sail fishing boats operating on the open water.
  • Sightseeing boats that take visitors across the 220 square kilometer surface.
  • A designated National Cycle Route that follows the perimeter of the lake.
  • Fifty-six different rivers flowing into the lake system.

Read more about Lake Kasumigaura

See all 6 lakes in Ibaraki