Unlike most sentō (public baths), the tubs here are filled with pure hot-spring water, naturally the colour of weak tea. Another treat is the lovely, lantern-lit, rock-framed rotemburo (outdoor bath). Jakotsu-yu is a welcoming place; it has English signage and doesn't have a policy against tattoos. It's an extra ¥200 for the sauna, ¥100 for a small towel.