『ほったらかし』というくらいなので、そこらへんの山肌に適当に湧いてる温泉かと思ったら、予想に反してしっかりした施設で驚きました。
人気の時間だと入浴できないくらい人が集まるそうで、行かれる方はご注意です。
絵ではこう描いてますが、タオル巻いたままの入浴はダメですよ。

Since it's called "Hottarakashi", I figured there'd be hot springs welling up just any old place on the mountain's surface, so I was surprised when, contrary to my expectations, it was a proper and complete facility. [i]Hottarakashi[/i] can mean "neglected/abandoned".

I hear that at the popular times, so many people gather there that you can't get into the bath, so anyone who's going there, take note.

You're not allowed to enter the bath wrapped in a towel, even though I've drawn it like that here.