Outdoor private onsen near Sapporo?

Hi all,

Just wondering if any of you know any onsens near Sapporo that offers an In room outdoor private onsen that cater to a family of 3.

If not, then a normal outdoor onsen that we can reserve for a fee for private family use if we go there on a daytrip. (30-60 or 90 mins)

Thanks all in advance. Appreciate your replies.

https://www.yado-furu.com/#spa
has private baths, but they are not outdoor afaik (the public outdoor is great though)

http://www.jyozankei-daiichi.co.jp/shikotsuko/onsen/
has private open air baths, but it is a longer way from sapporo and also they are not as beautiful

http://suichokan.com/hotspring/
not really outdoor, but maybe ok?