![](https://www.toya-usu-geopark.org/english/wp-content/uploads/sites/2/2022/07/R04_AccessMap_E.jpg)
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National highways
- National Route 230 : Sapporo – Jozankei – Nakayama Pass – Rusutsu – Lake Toya Onsen (103km)
- National Route 5,37,230 : Hakodate – Oshamanbe – Toyoura – Lake Toya Onsen (160km)
- National Route 36,37,453 : Tomakomai – Muroran – Date – Lake Toya Onsen (116km)