We have words like “Nikkou-yoku” and “Shinrin-yoku” in Japanese. They mean “Soaking up some sun” and “Relaxing in the forest”. “Yoku” means the action for healing or relaxation. In the season when the drift ice appears, you are surrounded with slience and fresh air, and you can see the ice field horizon clearly… it’s the most beautiful seascape you’ve never seen and you feel like watching it for a while. However, you cannot stand the cold if you try to stay long.Then we propose a new activity “Ryuhyo-yoku” that you should be in a sleeping bag and sit on a comfortable chair! We are sure that it makes you feel relaxed.