Lake Kuttara, Volcanic crater lake in Shiraoi, Japan.
Lake Kuttara is a circular volcanic crater lake extending about 148 meters (485 feet) deep within Shikotsu-Toya National Park. Forested hills surround the water, creating a natural bowl where clear blue water sits undisturbed.
The crater formed from volcanic activity long ago, creating the circular basin visible today. Salmon were introduced to the water in 1909, bringing a new species to the isolated ecosystem.
The lake draws visitors seeking a connection with Japan's pristine natural waters. People come here to experience the quiet beauty of a place shaped by volcanic forces long ago.
You can reach the lake from Noboribetsu Station by taking a bus to Noboribetsu Onsen, then walking about 40 minutes through forest trails. Wear sturdy shoes for the woodland path, and bring water or snacks for the journey.
The water comes only from rainfall and leaves only through evaporation, with no natural streams feeding it. This unusual water balance makes it a rarity among Japan's lakes.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
