Anastasia
Itsura Kanko Hotel Bekkan Taikanso in Kita Ibaraki Prefecture https://maps.app.goo.gl/zspqjbfF2JG5u3zG8?g_st=ic Some photos are mine, but I found the baths on their website – they are accurate, though they should take better pictures because the ocean view is very beautiful! The baths alternate daily between male and female, so even for one night you can experience two different ones. There is a communal rotenburo (open-air bath) with an ocean view. There are also two private baths, apparently with a forest view, but we didn't use them. The ryokan has rooms with ocean views and also a separate building. In the area, interesting attractions include TeamLab located right in the forest and a couple of historical sites. The price is great, around 12,000-13,000 yen per person per night without dinner, but with a good breakfast.