A Saturday afternoon on the water near Sesimbra nearly turned serious for two British women, aged 26 and 27, when strong winds carried them far offshore while they were paddleboarding at Praia da Ribeira do Cavalo. Unable to paddle back against the wind, they drifted until someone raised the alarm. Portugal's National Maritime Authority dispatched a lifeboat, which found the pair and brought them back to shore as darkness was falling.
The outcome was a lucky one, and the timing made it that way. Had the alarm come later, or the wind been stronger, the story could have resembled a far darker incident from 2023. That year, a 17-year-old stand-up paddler at Monte Gordo in the Algarve was swept out to sea by such powerful wind that onlookers couldn't swim out to reach her. Night fell with no sign of her. She was only spotted twenty hours later — by a merchant ship — sunburnt, dehydrated and badly weakened, but alive.
The two episodes share a pattern worth understanding if you plan to get on a board in Portugal: the country's Atlantic coast can generate stiff onshore winds that push inflatable paddleboards steadily out to sea. On an SUP you sit high in the wind, progress against a breeze is slow, and a flat board is hard for rescuers to spot. A late-afternoon start compresses everything — less daylight, fewer people on the beach to notice you're gone, and currents that have had all day to build.
None of this means skip paddleboarding. Sesimbra, south of Lisbon across the Tejo estuary, is a lovely stretch of coast with calm, sheltered water in the right spots and conditions, and Ribeira do Cavalo itself is a striking beach reached by footpath or boat. The lesson is simply about timing and respect for the forecast: go in the morning when winds are usually lighter, check the marine forecast before setting out, stay close to shore, and let someone know where you're paddling and when you'll be back. A leash, a bright-coloured board or vest and a phone in a waterproof pouch also make a genuine difference.
For travellers, this is a timely reminder as SUP hire shops multiply along the Portuguese coast every summer. Renting a board is cheap, easy and requires no experience — which is exactly why incidents like this happen. If staff mention wind, believe them. And if you see someone drifting offshore, raise the alert early rather than hoping they'll make it back: in the Sesimbra case, a quick call to the authorities is what brought two people home before nightfall.
The coast around Sesimbra rewards the cautious paddler with some of the Lisbon region's best sea swimming, cliff scenery and seafood restaurants — none of which require an offshore epic to enjoy.