The biggest attraction of Tomonoura Onsen is the beautiful view of the Seto Inland Sea while soaking in the hot springs. All three inns boast ocean view hot springs, but if you want to enjoy an especially breathtaking view, head to the rooftop open-air bath at Hotel Seifuutei. This bath is located on the hotel's rooftop and is an open-air bath where you can enjoy the sea of Tomonoura as far as the eye can see. The hot spring, which you can enjoy in a place close to both the sky and the sea, is the best! There is also a private open-air bath on the same rooftop where you can spend a luxurious 50 minutes in private. Please note that the rooftop open-air bath and private open-air bath at Hotel Seifuutei are for hotel guests only and cannot be used from December to February.