Mountains: The island is dominated by mountain ranges, including the Tope de Coroa, which is the highest peak on the island, reaching approximately 1,979 meters (6,493 feet) above sea level.

Valleys: Santo Antão is renowned for its deep valleys, such as the Paul Valley and the Ribeira Grande Valley, which are characterized by fertile lands, agricultural terraces, and picturesque villages. The valleys are essential for agriculture on the island, with crops like sugarcane, bananas, mangoes, and papayas being grown.

Tourism: Santo Antão is increasingly becoming a popular destination for ecotourism and adventure travel. Visitors come to explore its hiking trails, scenic viewpoints, and rural villages. Accommodation options range from small guesthouses to eco-lodges, offering visitors a chance to experience the island’s natural beauty and local culture.