The Parque Natural del Estrecho covers the headlands, dunes, and cliffs from just west of Tarifa down to Punta Camarinal, about thirty kilometres of mostly unbuilt coast. It is the Spanish half of an intercontinental biosphere reserve that includes the Moroccan side of the strait — together they form one of the most biologically rich crossings in the Mediterranean basin.
The park is best seen on foot or by bicycle. A coastal path leads west out of Tarifa along the dunes of Los Lances and continues to the Roman ruins at Baelo Claudia; another, on the eastern flank, climbs from the Hurricane Hotel through cork-oak woods to the Mirador del Estrecho. Birdwatchers come for the autumn raptor migration — kites, eagles, and honey buzzards funnel through the strait in their tens of thousands.