In 1903, Jurkovič built the River and Sun Baths in the immediate vicinity of the Hydrotherapy Institute, which in their time represented a centre of social gathering and entertainment for spa guests. The pool, fed by the Šťávnica stream, was lined with wooden changing cabins with white curtains. The renowned swimming facility hosted a variety of sporting competitions, including swimming races, ping-pong, gymnastics and ballooning.

At first, men and women took turns bathing and sunbathing; in 1910 the pool was extended and divided by a partition into a women's and a men's section. In the post-war period, the Sun Baths section designated for relaxation and sunbathing was also enlarged. The pool remained in operation until 1995, when the method of supplying the pool with river water no longer met hygiene regulations. Today an ornamental biotope has been created here.