The granite basins are technically known as 'giant's kettles' or 'moulin potholes', formed by geological erosion.
The Castro River originates in the nearby Serra de Pena Forcada before reaching these pools.
The site features a designated picnic area integrated into the wooded surroundings.
A traditional stone mill, the Muiño do Castro, is situated in the vicinity of the pools.
The path connecting the caldeiras is part of local hiking routes that link Muxía to the surrounding rural parishes.
Caldeiras do Castro is a series of natural river pools and waterfalls formed by the Castro River carving through granite rock in the municipality of Muxía, A Coruña. The site features several stone-carved basins, known as caldeiras, created by the hydraulic action of swirling water and pebbles over time. These rock formations act as natural swimming holes during the warmer months, set within a lush riverine woodland environment. A stone path follows the riverbank, providing access to the various tiers of pools and cascades. The location is an integral part of the local natural heritage of the Costa da Morte region. It serves as a popular spot for hikers traversing the landscape near the Atlantic coastline.
The wooden footbridge that overlooks the largest cascade, offering a full perspective of the tiered pools.
Wear water shoes with strong grip, as the granite rocks around the pools become extremely slippery when wet.
Bring insect repellent, as the humid, shaded riverbank environment attracts mosquitoes during the summer.
Visit during or after a period of light rain to see the waterfalls at higher flow levels, but exercise extreme caution near the pool edges.
Do not attempt to dive or jump into the pools, as the depths are uneven, hard to gauge, and often contain submerged rocks.
Practice 'leave no trace' principles; carry out all trash as there are limited facilities on-site. Respect the surrounding farmland and private property markers when accessing the trail.
