Spa of Baños de Mula Nature · Mula, Río Mula, Murcia Image of Mula, not of the place itself. A thermal spa in Mula whose medicinal waters were officially recognised in 1882 and emerge at a temperature of between 37 and 39 degrees; the first bathing facilities were built in 1826. Photo: Lorenzo Soriano (CC BY-SA 4.0) What to see and do in Mula