"A visit to Japan would not be complete without a soak in an onsen hot spring. A fun choice in Tokyo is the Oedo Monogatari Onsen on Odaiba island in Tokyo Bay. This is not a small, traditional onsen but a "super onsen ," with a variety of tubs for soaking, both indoors and out. Plan on spending at least half a day here. Rent a colorful cotton yukata and, between soaks in the hot water, peruse the food stalls offering yakitori , sushi, ramen, and udon. Massages, reflexology, and spa treatments are available. Or join the locals who nestle into a lounge chair for a post-soak nap."