Lake Mishima (Shiga Prefecture)

Lake Mishima (Shiga Prefecture)
住所 〒521-0221 滋賀県米原市池下 三島池
Typical peak season 11月上旬

Mishima Pond (Shiga Prefecture) Complete Guide | A Sanctuary for Waterfowl and a Spectacular Reservoir Reflecting Mount Ibuki

Mishima Pond, located in Ikeshimo, Maibara City, Shiga Prefecture, is a special place that captivates many people with its rich natural environment and beautiful landscape, despite being an agricultural reservoir with approximately 700 years of history. The spectacular view of Mount Ibuki reflected on the water’s surface, the ecosystem where diverse waterfowl congregate, and legends passed down through the ages—Mishima Pond is full of attractions worth visiting.

Overview and Basic Information about Mishima Pond

Mishima Pond is an elliptical reservoir located in Ikeshimo, Maibara City, Shiga Prefecture. Despite its relatively compact size with a perimeter of approximately 780 meters and an area of 39,000 square meters (3.9 hectares), its ecological value and scenic beauty are highly regarded.

Historical Background

Mishima Pond is believed to have been constructed approximately 700 to 800 years ago, during the Kamakura to Muromachi periods. Created using the baseflow of the Ane River for irrigation purposes, it continues to function today as an important agricultural water source supplying water to approximately 20 hectares of farmland.

It has deep connections with Mishima Shrine, and has a history of wildlife and aquatic resources being protected from ancient times. This religious tradition of protection has become the foundation of the rich ecosystem seen today.

Geographic Features

The greatest characteristic of Mishima Pond lies in its geographic location. Positioned near the border between Shiga and Gifu prefectures, it is situated at the foot of Mount Ibuki (elevation 1,377 meters), one of Japan’s hundred famous mountains. This location allows the majestic form of Mount Ibuki to be reflected on the pond’s surface on clear days, creating beautiful scenery that changes with the seasons.

The normal water level is approximately 50 centimeters, and the water quality is cool and clear. This stable aquatic environment provides the conditions necessary for many organisms to inhabit.

Natural Environment and Ecosystem of Mishima Pond

The Southern Limit of Natural Mallard Breeding

The most important ecological value of Mishima Pond is its recognition as “the southern limit of natural mallard breeding.” When natural mallard breeding was confirmed in 1957 (Showa 32), Mishima Pond was designated as a natural monument of Shiga Prefecture.

Mallards typically breed in Hokkaido and northern Honshu, but at Mishima Pond, natural breeding occurs in the relatively southern central Honshu region. This phenomenon demonstrates that Mishima Pond’s environment is extremely favorable for waterfowl.

Diverse Waterfowl Habitation and Migration

In addition to mallards, diverse waterfowl inhabit and migrate to Mishima Pond. Particularly noteworthy is the habitation of mandarin ducks, designated as rare species in the Shiga Prefecture Red List. Mandarin ducks are waterfowl with beautiful plumage and, because they act as pairs, are considered symbols of marital harmony.

Various other duck species can be observed, including spot-billed ducks, teals, and wigeon. During winter, many migratory birds flock to the pond, making it an excellent spot for birdwatching. Along the pond’s perimeter, kingfishers, herons, and grebes can also be observed.

Role as a Wildlife Protection Area

Mishima Pond and its surrounding area are designated as a wildlife protection zone, ensuring a safe living environment for waterfowl and birds. This designation prohibits hunting, allowing birds to rest and breed with peace of mind.

The harmony between human protection activities and the natural environment is what makes Mishima Pond a special place called a “waterfowl paradise.”

Aquatic Organisms and Surrounding Ecosystem

In addition to waterfowl, diverse aquatic organisms inhabit Mishima Pond. Fish, aquatic insects, mollusks, and other organisms form a rich ecosystem supported by clear water quality. These organisms serve as food for waterfowl and play an important role in maintaining ecosystem balance.

Around the pond’s perimeter, aquatic plants such as reeds and cattails grow, functioning as nesting sites and hideaways for waterfowl. Additionally, surrounding trees create beautiful scenery with cherry blossoms and autumn colors in each season, contributing to biodiversity.

The Four Seasons and Scenic Beauty of Mishima Pond

Spring: Harmony of Cherry Blossoms and Fresh Greenery

Spring at Mishima Pond attracts many tourists as a cherry blossom viewing spot. When the cherry blossoms planted around the pond reach full bloom, the reflection of Mount Ibuki and the cherry blossoms on the water’s surface create a beautiful harmony. Cherry blossoms typically bloom in early to mid-April, and this period attracts many photography enthusiasts.

After the cherry blossoms fall, the season of fresh greenery arrives, and the pond’s surroundings are enveloped in vibrant green. This is also the breeding season for waterfowl, and visitors may observe the endearing sight of parent birds with chicks.

Summer: Landscape of Lush Green Waterside

Summer at Mishima Pond offers the enjoyment of a quiet waterside landscape covered in deep green. Early mornings bring morning mist over the pond’s surface, creating a fantastical atmosphere. In summer, Mount Ibuki displays green mountains, and its reflection on the water provides a sense of coolness.

During this season, aquatic plants grow actively, and the ecosystem becomes most active. Dragonflies, butterflies, and other insects are abundant, making it an ideal period for nature observation.

Autumn: Autumn Leaves and Mount Ibuki’s Spectacular View

Autumn at Mishima Pond is also known as an autumn foliage viewing spot. Trees surrounding the pond turn red and yellow, with their vibrant colors reflected on the water’s surface. Especially on clear mornings and evenings, visitors can enjoy a “triple beauty” of autumn leaves, Mount Ibuki, and sky colors all reflected on the water.

Autumn is also when migratory birds begin to arrive, making it an ideal season for birdwatching. Autumn foliage typically peaks in early to mid-November.

Winter: Snow-Covered Mount Ibuki and Waterfowl

In winter at Mishima Pond, you can see a fantastical landscape of snow-covered Mount Ibuki reflected on the water’s surface. Mount Ibuki is known as one of Japan’s heaviest snowfall areas and displays a pure white mountain profile in winter.

During this season, many migratory birds arrive, and the pond becomes lively with waterfowl. The sight of ducks swimming energetically in the cold is a winter tradition at Mishima Pond. Early mornings may see thin ice forming on the pond’s surface, allowing you to experience the quiet beauty unique to winter.

Legends Associated with Mishima Pond

Mishima Pond has an interesting legend passed down through the ages. The pond is also known by the alternate name “Hiyasha Pond (Hiyasha-ike),” and this name is connected to a legend.

According to the legend, when the region experienced a prolonged drought, villagers offered prayers for rain, whereupon a dragon deity dwelling in the pond appeared and brought rain. Furthermore, due to its deep connection with Mishima Shrine, the pond is believed to possess sacred power and has been cherished by local people since ancient times.

These legends and beliefs have served as a cultural background for protecting the pond’s natural environment, and have been a factor in maintaining a rich ecosystem to the present day.

Designation as a Hundred Selection Ponds and Other Designations

Agriculture, Forestry, and Fisheries Hundred Selection Ponds

Mishima Pond was selected as one of the Ministry of Agriculture, Forestry, and Fisheries’ “Hundred Selection Ponds” on March 25, 2010 (Heisei 22). The Hundred Selection Ponds program selects 100 locations from approximately 200,000 ponds throughout Japan that possess outstanding value not only in agricultural use but also in ecosystem conservation, landscape, and regional culture.

Mishima Pond was selected due to its comprehensive evaluation including: over 700 years of agricultural use history, ecological value as the southern limit of natural mallard breeding, scenic beauty of Mount Ibuki’s reflection, and proven conservation activities by the local community.

Fifty Selection Ponds of Shiga

Mishima Pond is also selected as one of the “Fifty Selection Ponds of Shiga.” With approximately 13,000 ponds in Shiga Prefecture, being selected as one of 50 ponds positions it as one of the prefecture’s most important ponds.

Natural Monument Designation

It is designated as a natural monument of Shiga Prefecture as the “Southern Limit of Natural Mallard Breeding and Its Habitat,” protected as an academically valuable location. This designation restricts activities that would damage the pond’s environment, providing legal assurance for natural conservation.

Facilities and Access to Mishima Pond Natural Park

Park Facilities

The area surrounding Mishima Pond is developed as “Mishima Pond Natural Park,” with walking paths circling the pond. The approximately 780-meter circular route is flat and easy to walk, taking approximately 20 to 30 minutes to complete leisurely.

Benches and rest areas are installed around the pond, allowing visitors to enjoy the scenery at their leisure. Several viewpoints suitable for photography are also available, with the composition featuring Mount Ibuki in the background being particularly popular with photographers.

Coordination with Green Park Yamato

Near Mishima Pond is “Green Park Yamato,” which has facilities including a campground, barbecue area, and dog run. Visitors can enjoy nature observation at Mishima Pond combined with outdoor activities at Green Park Yamato, making it popular with families.

Green Park Yamato also has accommodation facilities, making it recommended for those wishing to take their time enjoying the beautiful morning and evening scenery of Mishima Pond by staying overnight.

Access Methods

By Train and Bus

  • Approximately 10 minutes by bus from “Omi-Nagaoka Station” on the JR Tokaido Main Line to “Mishima Pond” bus stop
  • As the number of buses is limited, it is recommended to check the timetable in advance

By Car

  • Approximately 15 minutes from “Maibara IC” on the Meishin Expressway
  • Approximately 15 minutes from “Maibara IC” on the Hokuriku Expressway
  • Free parking available (capacity for approximately 30 vehicles)

Address
Ikeshimo, Maibara City, Shiga Prefecture

Precautions When Visiting

Mishima Pond is a wildlife protection area and an important natural environment designated as a natural monument. Please note the following when visiting:

  • Do not feed waterfowl or wild birds (to prevent ecosystem impacts)
  • Avoid making loud noises or startling birds
  • Be sure to take all trash with you
  • Swimming in the pond or fishing is prohibited
  • Do not collect plants
  • If bringing pets, always use a leash

Ways to Enjoy Mishima Pond

Birdwatching

One of the greatest attractions of Mishima Pond is the ability to observe diverse waterfowl. Bringing binoculars or telephoto lenses allows for more detailed observation of bird behavior.

The most recommended time is the migratory bird season from autumn through winter. Early mornings and evenings are when bird activity is most active, making them ideal observation times. Several spots around the pond’s perimeter allow for easy observation, and by waiting quietly, you can see various bird species.

Photography

Mishima Pond is an excellent photography spot. The following subjects are particularly popular:

  • Mount Ibuki reflected on the water’s surface (inverted Mount Ibuki)
  • Combination of cherry blossoms and Mount Ibuki (spring)
  • Autumn foliage and water surface reflection (autumn)
  • Snow-covered Mount Ibuki (winter)
  • Fantastical landscape enveloped in morning mist (early morning)
  • Color of sunset and water surface (evening)
  • Waterfowl ecological photography

On calm days without wind, the water surface becomes mirror-like, allowing for particularly beautiful reflection photography.

Walking and Trekking

The walking path circling the pond is flat and easy to walk, enjoyable for all ages. Walking while experiencing nature in each season allows you to escape daily bustle and refresh yourself.

Seasonal flowers and trees are planted along the walking route, allowing you to enjoy nature observation while walking. Benches are also installed, so you can rest and spend time leisurely when tired.

Nature Learning

Mishima Pond is an ideal place for children’s nature learning. Many things can be learned in the actual natural environment, including waterfowl ecology, the role of reservoirs, and ecosystem balance.

Local elementary schools use Mishima Pond as a site for environmental learning, providing opportunities to learn the importance of nature conservation.

Conservation Activities at Mishima Pond

The rich natural environment of Mishima Pond is maintained through ongoing conservation activities by local residents and related organizations.

Role of Community

Local neighborhood associations and agricultural workers regularly conduct pond cleaning and surrounding environmental improvements. Additionally, to maintain its function as agricultural irrigation water, proper water level management and facility maintenance are performed.

Government Initiatives

Maibara City and Shiga Prefecture implement various measures for Mishima Pond conservation. These include protection as a natural monument, wildlife protection area management, and development as a tourist resource, approaching conservation from multiple angles to protect and enhance the pond’s value.

Volunteer Activities

Activities by environmental protection organizations and birdwatching enthusiasts are also active. These include waterfowl habitat surveys, invasive species monitoring, and environmental education programs, contributing to Mishima Pond conservation in various forms.

Nearby Tourist Spots

When visiting Mishima Pond, you can also enjoy nearby tourist attractions.

Mount Ibuki

Mount Ibuki, visible from Mishima Pond, is one of Japan’s hundred famous mountains, offering mountain climbing and scenic drives. From the summit, you can enjoy spectacular views of Lake Biwa and the Japanese Alps, and it is also known as a treasure trove of alpine plants.

Samegai Post Town

Samegai Post Town, a station town on the former Nakasendo Highway, is approximately 15 minutes by car from Mishima Pond. The beautiful townscape where plum blossoms bloom in the clear Chizo River captivates many tourists.

Hikone Castle

Hikone Castle, a national treasure, is located approximately 30 minutes by car from Mishima Pond. One of the few castles with an existing original donjon, it is also famous as a cherry blossom viewing spot.

Lake Biwa

Japan’s largest lake, Lake Biwa, is accessible by car in approximately 20 minutes from Mishima Pond. Various ways to enjoy it include lakeside driving and lake cruises.

Conclusion

Mishima Pond is a place with high value in both natural and cultural aspects—an agricultural reservoir with approximately 700 years of history that has been designated a natural monument as the southern limit of natural mallard breeding and selected as one of the Hundred Selection Ponds.

The beautiful landscape with Mount Ibuki reflected on the water’s surface, the rich ecosystem where diverse waterfowl inhabit, nature’s changing expressions through the four seasons, and legends passed down through the ages—Mishima Pond contains many elements that captivate visitors.

With various ways to enjoy it including birdwatching, photography, and walking, Mishima Pond is recommended not only for nature enthusiasts but also for families, couples, and solo travelers.

If you have the opportunity to visit Maibara City in Shiga Prefecture, be sure to visit Mishima Pond. The sight of Mount Ibuki reflected on the quiet water’s surface and the freely swimming waterfowl will surely make you forget daily bustle and bring peace to your heart.

It is important that we respect the natural environment carefully preserved by local people and pass it on to future generations. By visiting Mishima Pond, you will be able to reaffirm the importance of nature conservation.

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Nearby Autumn Foliage Spots