The hot spring at Bay Resort Hotel Naruto Kaigetsu uses the waters of 'Awaji Shiozaki Onsen,' a sodium bicarbonate spring. It is known for its smooth texture and is referred to as 'the hot spring for beautiful skin.' The water is heated, diluted, and filtered, and is expected to be effective for neuralgia, poor circulation, fatigue recovery, and skin conditions. From the large public bath, you can enjoy a panoramic view of the Naruto Strait and the Great Naruto Bridge, making it an attractive spot to enjoy the hot spring along with the breathtaking scenery.