A comprehensive list of hot spring hotel styles would typically include various architectural designs and thematic approaches. These can range from traditional Japanese onsen ryokans, with their minimalist, natural, and immersive hot spring experiences, to modern luxury resorts offering a range of amenities and spa treatments. Other styles might include Mediterranean villas, Scandinavian minimalist designs, or even eco-friendly lodges emphasizing sustainability. Each style caters to different preferences and experiences that guests may seek during their stay at a hot spring hotel.