Things to do in  Arecibo

Stationed high above the Puerto Rican countryside, these beautiful caves are one of Arecibo’s most popular destinations and offer a unique taste of Taino cultural history, too. While the hike to the top is somewhat technical, amazing views and ancient pre-Columbian rock paintings and carvings make it worth the challenge.

Known for its soaring interiors, million-year-old stalactites and stalagmites, and namesake underground river, Rio Camuy Cave Park (Parque Nacional de las Cavernas del Río Camuy) in Puerto Rico attracts nature lovers and casual visitors alike. The 268-acre (108-hectare) complex is most famous for its cave tour, but it also offers picnic pavilions, walking trails, and a playground.

The Arecibo Observatory is home to the William E. Gordon telescope, a single-aperture telescope that measures more than 1,000 feet (300 meters with a 40-degree cone of visibility. Its discoveries have included the rotational rate of Mercury and evidence of neuron stars.