1. Cueva del Indio, located in Arecibo, Puerto Rico, is a fascinating natural attraction known for its stunning sea caves and ancient petroglyphs. The caves were formed over thousands of years by the erosive power of the ocean. Visitors can explore the caves and view the petroglyphs, which are believed to have been created by the indigenous Taíno people. The area surrounding Cueva del Indio offers beautiful views of the Atlantic Ocean and the rugged coastline.

2. The working hours of Cueva del Indio can vary, so it is recommended to check in advance. There may not be a phone number available for direct contact, but local tour operators or tourist information centers may be able to provide more information.

3. There is no entrance fee to visit Cueva del Indio, as it is a natural attraction. To reach the site, visitors will need to either drive or take public transportation to Arecibo and then make their way to the caves. It is recommended to wear sturdy shoes and be cautious while exploring the caves, as they can be slippery and rocky.