Lake Shikotsu is a spectacular caldera lake in Shikotsu-Toya National Park in southern Hokkaido. Located approximately 40 kilometers southeast of Sapporo, the lake stretches roughly 13 kilometers from east to west and about 5 kilometers from north to south, forming a distinctive elongated shape.
The name Shikotsu comes from an Ainu word meaning “large depression”, an appropriate name for a lake surrounded by dramatic volcanic mountains. The shoreline measures approximately 40 kilometers, while the lake reaches a maximum depth of about 360 meters.
Lake Shikotsu is renowned for its exceptionally clear water and is considered one of Japan’s cleanest lakes. It is also known as Japan’s northernmost non-freezing lake, making it a remarkable natural feature even during Hokkaido’s coldest months.
Lake Shikotsu was formed by volcanic activity approximately 40,000 years ago. The resulting caldera became filled with water and developed into the deep, clear lake seen today.
The lake is surrounded by mountains rising more than 1,000 meters, including Mount Fuppushi, Mount Eniwa, and Mount Tarumae. Nearby Lake Okotanpe and the moss-covered gorge known as Koke no Domon add further variety to the landscape.
Dense natural forests cover much of the surrounding area, preserving a rich environment where the lake, mountains, volcanic terrain, and forests form a remarkably scenic landscape.
The defining feature of Lake Shikotsu is its exceptionally transparent water. Under favorable conditions, the clarity of the lake allows visitors to see surprisingly deep into the water, revealing the mysterious beauty beneath its surface.
Walking and hiking trails around the lake provide opportunities to experience the scenery at a leisurely pace. The landscape changes with the seasons, from fresh greenery and comfortable summer days to brilliant autumn foliage and the quiet beauty of winter.
The Lake Shikotsu Onsen area is the main visitor hub, with traditional inns and hotels where guests can relax in hot-spring baths while enjoying the surrounding natural scenery. Other hot-spring destinations around the lake include Marukoma Onsen and Ito Onsen.
Lake Shikotsu is also ideal for outdoor activities. Depending on the season and conditions, visitors can enjoy boating, canoeing, fishing, scuba diving, and camping. These activities provide different ways to appreciate the remarkable clarity of the lake and its pristine natural surroundings.
The Shikotsu Lake Visitor Center introduces the area’s natural environment and ecosystem through informative exhibits. It is a useful place to learn about the lake, its surrounding forests and mountains, and the wildlife that inhabits the region before exploring the area outdoors.
Lake Shikotsu hosts a variety of seasonal events that celebrate its distinctive natural environment. The Lake Shikotsu Lake Festival and Lake Shikotsu Autumn Leaves Festival offer opportunities to enjoy the lake and surrounding scenery during warmer months and the colorful autumn season.
In winter, the Chitose-Lake Shikotsu Ice Festival transforms the area into a fantastical world of ice. These events add a lively cultural dimension to a destination otherwise defined by its tranquil lake and wilderness.
Despite its impressive wilderness setting, Lake Shikotsu is conveniently accessible from Sapporo, making it an attractive destination for travelers seeking a day trip into nature. The combination of a deep volcanic lake, exceptionally clear water, forested mountains, hot springs, and outdoor activities makes the area one of southern Hokkaido’s most rewarding natural destinations.
Whether you come to paddle across the clear water, relax in a lakeside hot spring, hike through the surrounding mountains, admire autumn colors, or simply enjoy the peaceful scenery, Lake Shikotsu offers a memorable experience in every season.
45 minutes drive from Chitose Station [25km].