Sintra and Cascais are known for palaces and seafood, but their other great asset is the landscape. The Sintra-Cascais Natural Park wraps around both towns, with granite ridges, cork oak and pine forest, sea cliffs and long Atlantic beaches. If you enjoy moving outdoors, this stretch of Portugal offers a surprising amount to do between the monuments, and many of the best experiences cost little or nothing.Walking in the Sintra hills. The most rewarding walks link the sights themselves. A classic route climbs from the village through the forest to the Moorish Castle and Pena Park, rising steadily on paths with sections of old stone steps. Others lead to Monserrate through quiet lanes, or to the Convent of the Capuchos, a tiny hermitage hidden among boulders. Distances are modest but the gradients are real, so allow longer than a map suggests, wear shoes with good grip and carry water. Mist is common, and it can make the forest wonderfully atmospheric but also slippery. If the weather turns, there is always a cafe in the village to retreat to.Cycling and e-bikes. An electric bike changes how you experience the hills. With assistance you can ride between sights, explore side roads and still have energy at the end of the day. A self-guided rental gives freedom to choose your own pace, while guided options add commentary and a safe route. On the coast, the cycle path from Cascais runs along the shore towards Guincho, mostly flat and open to the sea, and is suitable for casual riders. Take care on cobbles, give way to buses on narrow roads and always wear a helmet.Off-road with a jeep. If you prefer an engine to pedals, a classic jeep tour takes you onto forest tracks and ridge roads that ordinary vehicles cannot use. It is a lively way to see the natural park, with stops at viewpoints and sections of the wild coast. Tours usually run in small groups and last a few hours, making them a good half-day option. Wear practical clothes, because dust and mud are part of the experience.The coast on foot. The path from Cascais to Boca do Inferno takes you past the marina, the citadel and rocky shelves where the Atlantic crashes in. Continue west towards Guincho for a longer walk with open views, or pause at a beach for a swim in summer. Cabo da Roca, the westernmost point of mainland Europe, offers dramatic cliff-top paths and sunsets. Winds can be strong, so keep a safe distance from edges and follow the signs.Beaches and watersports. Guincho beach, with its strong winds and big waves, is a magnet for surfers, windsurfers and kitesurfers, and it is also spectacular for walking. Closer to Cascais, sheltered bays are better for swimming and paddling. Water temperatures stay cool even in summer, so a thin wetsuit is useful if you plan on a long session. Check local conditions and flags before entering the water, and never swim alone in rough conditions.On the water. From Cascais Marina, boat trips offer a different view of the coast. A dolphin watching cruise searches for common dolphins offshore, while sailing and sunset cruises show the cliffs and the old town from the sea. Trips can be affected by weather and swell, so choose a flexible day and bring a windproof layer.Seasons and safety. Spring and autumn are the best seasons for activity, with mild air, green hills and fewer crowds. Summer brings heat in the forest and strong winds on the coast, so start early and carry plenty of water. Winter is wet and misty but quiet, and waterproofs make walking enjoyable. On any route, tell someone your plan, keep your phone charged and respect signs that close trails after storms. Wherever you go, take your rubbish with you and keep to marked paths, which protects both the habitat and your ankles.Putting it together. A good active day could begin with an early forest walk in Sintra, continue with an e-bike loop through the hills and finish with a sunset at the coast. A second day might combine a morning on the water with a bike ride to Boca do Inferno and a long lunch in Cascais. Mix active days with palace days so that your legs get a break, and always book timed entries for the major monuments before you set off. The reward is a version of Sintra and Cascais that feels less like a checklist and more like a place to enjoy.

Sintra & Cascais guide
Active Sintra and Cascais
Beyond the palaces: ways to explore Sintra and Cascais outdoors, from forest walks and e-bike loops to off-road jeep rides, the coastal path, Guincho and dolphin watching from the marina.
Mentioned in this guide
Sintra Self-Guided E-Bike Ride
An electric bike turns the Sintra hills from a slog into a pleasure. Ride at your own pace between the village, the forest roads and the palace gates, with the battery doing the climbing.
Sintra 4x4 Classic Jeep Tour
A guided off-road trip through the Sintra-Cascais Natural Park in classic Portuguese jeeps. Forest tracks, ridge viewpoints and the wild Atlantic coast in a fun, dusty half day.
Cascais Dolphin Watching Cruise
A boat trip out of Cascais Marina to look for dolphins in the Atlantic, with the cliffs, the citadel and the Cascais skyline seen from the water. A good family outing on a clear morning.
Guincho Beach and the Wild Atlantic Coast
A long, wind-swept Atlantic beach backed by dunes and the hills of the Sintra-Cascais Natural Park. Famous for kitesurfing and windsurfing, spectacular at sunset and free to visit.
DoCabo da Roca
The westernmost point of mainland Europe, a windswept cliff-top cape with a lighthouse, a lighthouse visitor centre, and Atlantic views. Free to walk, with optional paid lighthouse visits.
DoBoca do Inferno
The Mouth of Hell: a sea-carved chasm and arch where Atlantic waves explode on the rocks. A free ten-minute walk from central Cascais, and best on a stormy or high-swell day, from behind the barriers.
StayPenha Longa Resort
A large five-star resort in the Sintra-Cascais Natural Park, set around a former monastery with golf, a spa and several restaurants. A peaceful base between the palaces and the coast, best with a car.
Hotel Cascais Miragem Health and Spa
A large waterfront resort-style hotel on the Cascais coast at Estoril, with 192 rooms, two indoor pools, a seasonal outdoor pool, a spa and two restaurants. Good for families and for spa-focused stays.
Farol Hotel
A five-star seaside retreat on the Cascais waterfront, with an oceanfront saltwater pool on the cliffs, a spa and several restaurants and bars. Steps from the Santa Marta Lighthouse Museum and a short walk to the marina.