The Benagil Caves are a series of caves and grottoes located on the southern coast of Portugal in the Algarve region, near the small fishing village of Benagil. The caves are a popular tourist attraction, known for their unique rock formations, turquoise waters, and hidden beaches.

The most famous cave is the Algar de Benagil, which is a large dome-shaped cave with a circular opening at the top, allowing sunlight to enter and illuminate the interior. Visitors can swim, kayak or take a boat tour to reach the cave, where they can enjoy the view of the stunning natural scenery.

The Benagil Caves are situated in the Praia de Benagil beach, which can be reached by car or by boat. It is advisable to take a boat trip to the caves during low tide, as the caves are not accessible during high tide. Boat tours are offered by several companies in the area, and some tours also offer the opportunity to swim, snorkel, or sunbathe on the beaches near the caves.

The Benagil Caves are a popular destination for tourists visiting the Algarve region, and their unique beauty and picturesque scenery make them a must-see attraction for anyone traveling to Portugal.