Upmarket thermal spa that's the most attractive of the mud-fests around Nha Trang, with hot mineral mudbaths (private tub 700,000d for two people), bathing pools and even nine mineral waterfalls. The rural setting is gorgeous, with distant mountain views, and there's a decent restaurant, spa/massage salon and gift shop. All kinds of mud and spa packages are available.
Located 7km northwest of the centre, it's worth spending at least half a day here. Call for a shuttle (20,000d one way).