#4 Go diving or kayaking in Arrábida Marine Park
Sesimbra is the main entry point to the Arrábida Marine Park, one of Portugal’s best spots for underwater life. Several diving schools in town offer trips for both beginners and certified divers, with reefs, shipwrecks, and seahorses among the highlights.
If diving isn’t your thing, try sea kayaking along the limestone cliffs between Sesimbra and Praia do Ribeiro do Cavalo. You’ll pass caves, coves, and sheer drops rising from turquoise water. Morning trips are best for calmer seas and quieter conditions.
#5 Hike the cliffs above Praia do Ribeiro do Cavalo
Often named one of the best beaches in Portugal, Ribeiro do Cavalo is hidden by cliffs and reached by a rugged trail. The beach itself is wild: no bars, no sunbeds, just sand and rocks, and all the more striking for it.
The hike takes about 30 minutes and can be steep in parts, so wear trainers and avoid it in flip-flops. Pack everything you’ll need, including water and shade. Once there, you’ll understand the appeal: it’s remote, uncrowded, and feels completely off the grid.
#6 Eat seafood at the fishing port
Sesimbra has a working port, and the catch lands just metres from the kitchens. For the freshest fish, head to the row of seafood restaurants near the fishing docks. Local favourites include grilled swordfish, clams in garlic and wine, and caldeirada: a fisherman's stew with potatoes and white fish.
Come early for lunch or make a reservation in the evening. Prices are fair for the quality, and the atmosphere is casual, with paper tablecloths, plastic chairs, and the smell of charcoal in the air.
#7 Visit the Museu Marítimo de Sesimbra
Sesimbra’s history is tied to the sea, and the town’s maritime museum tells that story well. Housed in a restored 17th-century fort, it’s small but rich in detail. You’ll find model boats, maps, fishing tools, and personal stories from local families who’ve worked the ocean for generations.
One room focuses on the local art of tuna fishing using almadraba nets, while another traces the history of naval battles fought offshore. It’s a great way to understand Sesimbra beyond the beach towel.