A Highland Basin Surrounded by Mountains
Kurozo Marsh lies at an elevation of approximately 550 meters, near the summit of a mountain basin surrounded by peaks around 600 meters high. Wetland terrain accounts for roughly 70 percent of the basin, creating an extensive natural habitat in an otherwise mountainous landscape.
The basin stretches approximately 2 kilometers from north to south and measures between 100 and 300 meters across. Its total area is around 40 hectares. A small stream flows through the basin and reaches Tabi-no-Shiri Falls at its southern end before joining the Matsuo River.
The surrounding mountains give the wetland a sheltered, secluded atmosphere. Visitors can explore the area on foot, taking in the open wetland vegetation, nearby woodland, and the gentle movement of water through this unusual highland environment.
A Protected Habitat for Rare Wetland Plants
Kurozo Marsh is particularly valued for its diverse wetland vegetation. On March 5, 1965, it was designated a Natural Monument by Tokushima Prefecture in recognition of its botanical importance.
Among the plants found here are the delicate egret flower, which produces elegant white blossoms, and a variety of other species adapted to damp, nutrient-poor environments. Depending on the season, visitors may see flowers and foliage that are rarely encountered in ordinary gardens or urban parks.
Notable plants recorded in the wetland include:
Greater white moss (Sphagnum species), Onツツジ (a type of azalea), water lilies such as Nymphaea tetragona, Japanese rose gentian (Tofieldia-related wetland flora), small bur-reed, egret flower (Habenaria radiata), thistle species, swamp iris-like plants, gentians, bladderworts, and sundews.
Summer is especially rewarding for plant enthusiasts, when the wetland becomes lush and some of its most distinctive flowers come into bloom. The precise flowering period varies with weather and local conditions, so the scenery may differ from year to year.
Tabi-no-Shiri Falls
At the southern end of Kurozo Marsh, the stream descends over Tabi-no-Shiri Falls, a small waterfall approximately 5 meters high. The waterfall is also included among the Shikoku 88 Waterside Sites and is known for the angular rock formations over which the water flows.
Although modest in height, the falls offer an appealing contrast to the open wetland above. The surrounding rocks, flowing water, and greenery make this a pleasant destination for a short nature walk.
Walking to the Waterfall
A walking trail leads from the wetland toward the waterfall. From the parking area at the far end of the marsh, the falls can be reached in approximately 5 minutes. This makes it easy to combine a stroll through the wetland with a visit to the stream and waterfall.
Enjoy the Marsh Through the Seasons
Kurozo Marsh offers a different experience throughout the year. In spring, fresh shoots and new greenery emerge across the wetland. Summer brings abundant vegetation and the chance to see flowering wetland plants, including the elegant egret flower. In autumn, the surrounding mountain slopes take on warm seasonal colors, while winter brings a quieter atmosphere to the highland basin.
For photographers and nature enthusiasts, the best approach is to take time along the walking paths and observe the small details of the landscape. The wetland’s appeal lies not only in its flowers but also in its open spaces, mountain setting, and peaceful streams.
Nearby Mountains and Outdoor Experiences
The area around Kurozo Marsh includes Mount Kainayama and Mount Funayama, making it an appealing destination for visitors who enjoy mountain scenery and outdoor exploration. The wider Tsurugi Mountain Range is also known for its high peaks and hiking opportunities.
Because Kurozo Marsh is a sensitive natural habitat, visitors should remain on established paths where possible, avoid picking plants, and take care not to disturb the wetland vegetation. These simple precautions help protect the rare ecosystem that makes the area special.
How to Get to Kurozo Marsh
By public transportation: From JR Awa-Ikeda Station on the Dosan Line, take a Shikoku Kotsu bus and get off at Urushikawa Hachiman bus stop. From there, the marsh is approximately a 50-minute walk. Bus services in this mountainous area may be limited, so check schedules before setting out.
By car: From Ikawa-Ikeda Interchange on the Tokushima Expressway, the drive takes approximately 45 minutes. The route passes through mountainous terrain, so allow extra time and drive carefully on narrow, winding roads.
Discover a Quiet Side of Tokushima
Kurozo Marsh is a rewarding destination for travelers seeking the natural landscapes beyond Tokushima’s better-known attractions. Its rare wetland plants, protected environment, mountain scenery, and nearby Tabi-no-Shiri Falls create a distinctive setting for a peaceful outdoor excursion.
Whether you visit during the flowering season or simply want to enjoy the stillness of a highland basin, Kurozo Marsh offers an opportunity to slow down and appreciate the ecological richness of Shikoku’s mountains.