The spa experience at Hotel Route Inn Takamatsu Yashima receives consistent praise from guests, with the large public bath frequently highlighted as a standout feature. Many guests note the spaciousness and cleanliness of the facility, making it an ideal spot for relaxation. The man-made radium hot spring and sauna contribute to a rejuvenating atmosphere, perfect for unwinding and relieving fatigue. The accessibility of the large communal bath, available for use at any time, adds to its appeal, providing a comforting and pleasant experience for those staying at the hotel.