Guide
Mizunomori Aquatic Plant Park is a specialized botanical park located along the shores of Lake Biwa in Kusatsu City, Shiga Prefecture. Based on the concept of "Connecting people with plants and water," the park showcases a diverse range of aquatic plants set against the breathtaking natural backdrop of Lake Biwa. The facility includes the 'Lotus Pavilion' (a greenhouse), outdoor areas featuring seasonal blooms, and amenities for relaxation and dining. It is a beloved destination for those seeking a peaceful moment amidst the water and greenery.
Opened on July 13, 1996, this park is a well-established facility that will celebrate its 30th anniversary in 2026. Leveraging its prime location adjacent to Lake Biwa—Japan's largest freshwater lake—the park focuses on the conservation and display of aquatic plants while coexisting with the local ecosystem. Beyond its function as a park, it serves as a center for nature education and a space for both locals and tourists to connect with the natural world through the study of water-based flora.
The park offers captivating displays that change with every season. A major highlight is the 'Lotus Pavilion,' a specialized greenhouse where visitors can observe a wide variety of lotus and water lily species from both Japan and abroad. The outdoor wetland gardens are also a must-see; for instance, in early summer, the 'Water Lily Exhibition' showcases over 150 different varieties. Depending on when you visit, you can enjoy different spectacles, such as Iris blooms in early summer or the elegant hanging flowers of the Wisteria.
Because the featured plants change with the seasons, every visit offers a unique experience. In spring, you can enjoy fresh greenery and Wisteria. Early summer (around May to June) is the peak season for water lilies and Irises, making it a highly recommended time to visit to see the massive variety of blooms. In mid-summer, the vast lotus colonies create a stunning landscape. For the best experience, visit during bright daylight hours to see the vivid colors of the flowers, or toward the evening to enjoy the tranquil, serene atmosphere of the lakeside.
Visitors can do more than just observe; the park hosts seasonal events and special exhibitions. These include focused displays like the 'Water Lily Exhibition' or 'Iris Exhibition,' and sometimes interactive activities like stamp rallies. Additionally, the on-site restaurant allows you to enjoy a meal while gazing at the beautiful scenery, making your visit a truly immersive experience in the world of aquatic plants.
The park is located on the eastern side of Lake Biwa, near the Karasuma Peninsula. The surrounding area offers beautiful lakeside views, making it an excellent destination for driving or cycling tours. The park is accessible via public transport (including the Ohmi Railway) or by car, allowing you to easily combine your visit with other sightseeing spots in Shiga Prefecture.
As the park features extensive outdoor walking paths, please dress appropriately for the season. During late spring and summer, we highly recommend bringing a hat and sunscreen to protect against the sun and heat. While the paths are well-maintained, please be mindful of the plants and water edges when walking.