Lagoa do Capitão is a linear descent from Pico's central plateau to São Roque do Pico. The route begins beside the Transversal Road and first approaches the lake, framed by pasture and upland vegetation. After visiting the shore, it joins a dirt track lined with large Azorean junipers. This opening landscape, exposed and often damp, offers a clear experience of the island's high interior.
After roughly three kilometres, the route skirts Piquinho and opens views over the north coast. It then returns to the main descent, follows a gravel section and crosses pasture by the markings. A shortcut through endemic vegetation leads to the most demanding part: a steep cobbled lane that loses height quickly. As elevation falls, the vegetation changes and Australian cheesewood becomes more frequent, marking the transition from plateau to inhabited land.
Leaving the trees, the trail passes a picnic area and continues toward Cais do Pico. It finishes at the Convent of São Pedro de Alcântara in São Roque. Lake, native vegetation, pasture, distant coast and built heritage unfold in one continuous progression; the medium grade reflects the surface, sharp descent and rapidly changing upland weather rather than the length alone.