The restructuring and expansion of the thermal park has provided for the construction of a new outdoor swimming pool characterized by an architecture in full harmony with the landscape context; The use of the local stone The travertine brings us back to the historicity of the place. A sensory thermal path of connection between the existing tank and the new natural swimming pool characterized by water games that surround the veins of the natural travertine stones has been created. All works included solutions to reduce the environmental impact, including the arrangement of green and the recovery of rainwater.