Cala El Pedregal, Rocky beach cove in Castro-Urdiales, Spain.
Cala El Pedregal is a small rocky cove with natural stone pools in Castro-Urdiales. The granite formations create different levels where swimmers can enter the water, and stone steps provide access directly down the cliff face.
The rocky formation developed over centuries through natural erosion by waves and tides. An underground passage beneath the cliffs channels seawater through, causing the pool to refill regularly during incoming tides.
Located in the Barrio de los Marineros district, this swimming spot represents a traditional gathering place for local residents of Castro-Urdiales.
Access is relatively easy via stairs, but the beach operates without lifeguard supervision. Summer cleaning services and nearby parking make it convenient to visit, though morning visits or off-season timing help avoid crowds.
Hidden beneath the cliffs is an underground tunnel that causes water to flow into the pool during high tide. This submerged passage remains invisible from above but keeps the water naturally refreshed and clear.
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