Tianto Mountain is the main scenic spot in Abashiri, Hokkaido, Japan. It includes attractions such as Abashiri Prison Museum, Okhotsk Ryu Ice Museum, and Hokkaido Northern Peoples Museum. This Tiandu Mountain Observatory is located on the top of Tiandu Mountain, Okhotsk Ryu Ice Museum. The top deck. Standing on the Tiandu Mountain Observatory and looking around, you can see Lake Abashiri at the foot of the mountain, the northern Pacific Ocean and the lush forest in the distance. At the same time, on the hillside behind Okhotsk Ryu-Hyokan, there is also an open high ground where you can also enjoy the scenery of Abashiri. A rectangular picture frame is also placed so that everyone can be in the same frame as the beautiful scenery.