Day Trip to Alcoutim and Mértola: Border Views and the World’s Only Cross-Border Zipline

For those staying in Tavira and looking to escape the coast for a day, a drive inland to the historic villages of Alcoutim e Mértola offers a completely different side of the Algarve – one shaped by river valleys, whitewashed hill towns, and a quiet echo of frontier history.

Start your journey heading northeast from Tavira along the N124 or A22, passing rolling hills and cork oak forests until you reach Alcoutim, a tranquil village on the banks of the Rio Guadiana. Directly across the water lies Sanlúcar de Guadiana, its Spanish twin, and the two towns have shared centuries of peaceful coexistence – even exchanging festivals and customs. From the waterfront promenade in Alcoutim, you’ll enjoy beautiful views across to Spain, while the castle ruins above the village offer panoramic vistas and a small archaeological museum worth visiting.

But perhaps the most thrilling way to experience the border is not by boat or bridge – but by zipline. From Sanlúcar, adrenaline-seekers can launch themselves across the Limite Zero zipline, the only cross-border zipline in the world. In just under a minute, you’ll fly 720 meters across the river at speeds of up to 80 km/h – landing back in Portugal… and in a different time zone. (Yes, Spain is an hour ahead!)

After your ride (and the small boat ride back to Alcoutim), consider continuing north to Mértola, a hilltop village nestled in the Guadiana Valley Natural Park. Its layered history includes Roman ruins, a former mosque now serving as the main church, and winding cobbled streets with traditional houses. This is one of the most atmospheric towns in inland Portugal — and a photographer’s dream.

Don’t forget to enjoy lunch at a riverside taverna, where dishes like pork with clams, grilled black pork, ou wild boar stew reflect the hearty Alentejan cuisine of the region.

From Mértola, you can return to Tavira via the scenic N122 and N124 routes — a leisurely drive through the hills, with the occasional stork nest or shepherd crossing your path.