La Portada is one of the 15 Natural Monuments in Chile. It is the most relevant attraction around the city, located 25 min by car from the hotel. Fossil rocks have formed an arc in the Pacific coast that can be watched from a viewpoint. There are also walking paths around the area.
Parque Cultural Ruinas de Huanchaca
Avenida Angamos, 01606, Antofagasta, Antofagasta
The ruins of Huanchaca are the remains of an ancient silver foundry. It was declared on January 7th, 1974 as a National Historical Monument. And it has a museum that talks about the mining history of the area.