1. Arab Baths
Down by the Las Culebras stream, far below the main tourist circuit, these 13th-century ruins offer the best understanding of Islamic Ronda. While the boiler rooms and reception areas are impressive ruins, the main cold room is nearly intact, with its barrel-vaulted ceiling pierced by star-shaped vents. These openings were designed to let out steam and let in shifting beams of sunlight, creating a geometric light show that moves across the brick floor as the day progresses.
Water management was the lifeblood of the Moorish city, and a video presentation inside explains how the water wheel (still visible outside) lifted liquid from the river to distribute it to the city above. It is a strictly engineering-focused site, stripped of the decorative tiles or plasterwork you might see in Granada, leaving only the raw, functional masonry that has survived floods and neglect for centuries.
If you are organizing your list of Ronda attractions by district, group this with the Puente Viejo and the Arco de Felipe V. The walk down here is steep, which discourages the casual bus crowds, leaving the humid, echoey chambers quiet enough to hear the rushing water outside. It feels damp and subterranean, a stark difference from the windy, sun-blasted heights of the upper town.