Portugal's southern coast is Europe's great beach machine, but reducing the Algarve to sunbeds misses the point. Its essence is geological drama — ochre cliffs, collapsing arches, caves lit by portholes to the sky — plus fishing towns, a lagoon wilderness and seafood that shames most of the Mediterranean. Ranked, from unmissable downward.
Key facts
- Where: Portugal's southernmost region, from Sagres east to the Spanish border
- Best months: May–June and September–October; August is peak everything
- The split: dramatic cliffs west of Faro, calm lagoon islands to the east
- Water: the Atlantic here is refreshing, not tropical — even in summer
1. The Benagil Cave by sea
The Algarve's icon: a vast domed sea cave near Benagil with a natural oculus in its ceiling that pours sunlight onto a hidden beach. It can only be properly seen from the water — join a licensed boat trip or guided kayak tour from nearby beaches, ideally the first departure of the morning before the flotilla arrives. Rules on entering the cave have tightened in recent years, so check current arrangements locally.