The Hundidero-Gato system is the longest cave system in Andalusia, with a vertical drop of over 200 meters.
The underground river system is prone to flash flooding, which historically deposited significant debris inside the galleries.
The cave entrance acts as a natural air vent, causing a significant temperature drop near the basin compared to the surrounding valley.
The site was designated as a Natural Monument of Andalusia in 2001.
It is a critical habitat for several species of bats, including the Schreiber's bat (Miniopterus schreibersii).
The water temperature remains near 15°C (59°F) year-round due to its deep subterranean origin.
The surrounding area contains evidence of Neolithic settlements and burial sites.
Cueva del Gato is a karst cavern system located in the Sierra de Grazalema Natural Park, famous for its turquoise swimming pool formed by the Guadiaro River. The cave is part of the Hundidero-Gato system, an extensive underground network stretching over 4 kilometers. The mouth of the cave features a distinct feline-shaped rock formation, which gives the site its name. It contains significant prehistoric archaeological remains, including Paleolithic-era cave paintings. The water flowing from the cave entrance is sourced from a subterranean river and remains consistently cold throughout the year. The site is a protected natural monument in Andalusia, strictly limiting internal access to authorized speleological expeditions. Visitors typically congregate in the outdoor basin area for swimming and picnicking.
From the wooden footbridge spanning the river, providing a direct view of the cave mouth and the turquoise basin.
Wear water shoes as the riverbed is composed of slippery, uneven limestone rocks.
Bring your own shade and water, as the immediate swimming area has limited natural protection from the sun.
Arrive early in the morning to secure parking along the roadside, as space is extremely limited.
Do not attempt to swim in the deep cave entrance zone, as strong undercurrents and cold temperatures pose safety risks.
The outdoor swimming area is typically open during the summer months, but subject to closure based on environmental conditions and park management decisions.
Entering the cave beyond the public viewing area is strictly prohibited without a professional speleology permit. Carry out all trash to preserve the protected natural environment.
