The open air gender separated onsens and the one mixed onsen have breathtaking views of the Manza Onsen region! It's simply amazing when your body is immersed in the onsen, and snow is falling onto your head and shoulders. There's a free shuttle bus from Karuizawa station to the hotel, and from the hotel back to the Karuizawa station, but make sure you reserve your seat in advance (instructions on the Manza Prince Hotel website). There is also a free shuttle bus from/to Manza Prince Hotel and Manza Kogen Hotel that runs hourly so you can try the onsens at both hotels free of charge! The hotel is a little on the older side, but it's well kept and clean. Note that breakfast, lunch and dinner options at the hotel are limited and on the more expensive side so you may want to consider bringing your own meals if travelling on low budget :-)