Managed to find the link to the smaller hotel, but the english page is under construction. It's called Noboribetsu Takimoto Inn:
http://www.takimotoinn.co.jp/index.htmlThe name suggest that it could be link to the main hotel. I not very sure but I did stayed here and then cross the road to the onsen in the main hotel, which our tour guide told us. Nobody stop us.
For this hotel, it looks very budget but clean and comfortable. The bathroom are extremely small, so we took our bath at the onsen. Would certainly go back again because I think it's much cheaper than the main hotel, and we can enjoy the same facilities.
The onsen is really an eye opener. There are 4 outdoor hot spring pools and at least 7 indoor pools, all pools with different temperature or therapeutic effects. The bath area was very well equipped with branded shampoo, bath cream, moisturizer, facial cleanser and scrubs. There were shared bath areas, individual cubicles, low stool or chairs for you to pick where you want to have a relaxing long bath. The dressing area was also well equipped with sanitized combs, hair dryers, facial toner, moisturizer and even cold tea and a chilly area to cool you down after hot spring bath -- taken all these down after my trip :)
