The infinity pool at Singapore's Marina Bay Sands, which overlooks the city from the rooftop pool, is creating a buzz. Infinity means limitless, and is a word that describes something that goes on forever. The outer edge of the bathtub is designed to blend with the sea and sky, making it impossible to tell where the boundary is. Because they are often built in dangerous locations, they are said to be the pinnacle of structural engineering.

In Japan, a country famous for its hot springs, "infinity hot springs" or "infinity baths" have sprung up all over the country, baths that are visually integrated with the unique scenic beauty of the area.

I remember that the first infinity bath at a five-star hotel was " The Kukuna " in Fujikawaguchiko Onsen. All rooms are in a great location with a view of Mount Fuji across Lake Kawaguchi. When you soak in the open-air bath at the Grand Spa on the top floor, you can experience the mysterious sensation of the water surface and the lake surface becoming one, which caused a big stir.

In recent years, five-star hotels have followed suit and are now offering infinity baths one after another, providing the ultimate in hospitality. If you take a look at the infinity baths at the hotels introduced here, no further explanation is needed.