Hiking the Seven Hanging Valleys
Half an hour’s drive west the next morning brings us to the Lagos coast, where iron oxide-red cliffs are encrusted with spiral shells and the plunging shoreline has been carved into sea stacks and arches. Led by guide Miguel Rodrigues, from a young responsible tourism outfit Algarvian Roots, our plan is to trace a 4-mile (6km) route high above the crashing whitewater, between the golden coves of Praia de Marinha and Praia de Vale Centeanes.
Running at right angles to the coast, seven long-gone streams have funnelled valleys into the limestone cliffs, earning it the name, the Seven Hanging Valleys. The speed of erosion, geologically speaking, is lightning fast. “The sea stacks give you an idea of where the coastline was a hundred years ago,” explains Miguel. They already look distant, like sentinels guarding these shores at continental Europe’s southern edge.
This stretch harbours a storied past. During the Portuguese dictatorship of Estado Novo ("New State"), between 1926 and 1974, the Algarve was a hive of clandestine migration and smuggling – the pockmarked coast naturally abundant in hiding places. We pass Praia do Carvalho, also known as Smuggler's Cove, a small beach accessed through a tunnel in the cliffs. The passage is believed to have been hand-carved by pirates, to hide contraband and launch attacks: in the 16th and 17th centuries, raids by North African (Barbary) corsairs were a constant threat.
Back in the present day, the shapeshifting nature of the landscape is all around us. Sinkholes have appeared around the path, created by thousands of tiny cracks that trigger a vertical collapse. “Imagine a big drill working really slowly – that would be the rain,” says Miguel. The most curious example of this is Benagil Cave, where a crescendo of waves beckons us closer to its twin openings of sea and sky.
You don’t need to be an experienced hiker to navigate the Algarve. The coastline is linear, and across the region, day hikes are signed by yellow-and-red markers (red-and-white mark multi-day treks, of which there are three). The jewel-like red lantern of the Alfanzina lighthouse, 23m tall and 63m above the sea at Praia do Carvoeiro, ushers us towards our destination, after we pause to breathe in the briny air and snack on fig-and-almond cake.