Cascais packs an outsized punch for a town of 35,000 residents: a dramatic coastline with wild Atlantic beaches, a compact historic center, a cluster of excellent museums, and easy day trips to Sintra and Lisbon. Most attractions are walkable from the train station, and the coastal promenade links everything along the waterfront. Here is a detailed guide to what to see and do, with practical information on hours, tickets, and getting there. See the Cascais travel guide for more details.
Things to Do in Cascais: Beaches and Coastline
Praia da Conceicao and Praia da Duquesa
These two connected sandy beaches sit right in the center of Cascais, steps from the train station. Both have calm, sheltered water ideal for swimming, plus sunbed and umbrella rentals (around 15 euros for two loungers and a shade in summer). Lifeguards patrol from June through September. Showers and toilets are available on the promenade. The beachfront cafes serve drinks and light meals. Arrive before 10am on summer weekends to claim a good spot; by noon the sand is packed shoulder to shoulder in August. Free entry, accessible via the Cascais-Estoril promenade. See the Cascais weather by month guide for more details.
Praia da Rainha
Tucked between the Cascais Citadel and the promenade, Praia da Rainha is the town’s most photogenic beach. This tiny cove, named after Queen Dona Amelia who swam here in the late 19th century, is only about 50 meters wide with golden sand framed by rocky cliffs. The water is calm and shallow. It fills up fast given its small size, so arrive by 9am in summer. Access is via a staircase from the promenade near the Hotel Baia. No facilities on the beach itself but the promenade cafes are a 1-minute walk away. Best for a quick swim or photos rather than a full beach day. See the best time to visit guide for more details.
Praia do Guincho
Eight kilometers north of Cascais center, Guincho is a vast, wild Atlantic beach backed by the Sintra-Cascais Natural Park dunes. This is not a calm swimming beach: strong winds and powerful waves make it one of Portugal’s premier windsurfing, kitesurfing, and surfing destinations. The northerly wind (Nortada) is most consistent from May through September, building through the afternoon. Several surf schools operate on the beach: Moana Surf School and Guincho Wind Factory offer lessons from around 40 euros for a 2-hour group session, including equipment. Even if you do not surf, Guincho is worth visiting for the raw coastal scenery. The beachfront restaurants, including the Michelin-starred Fortaleza do Guincho, serve fresh seafood with ocean views. Reach it by bus M08 from Cascais Terminal (15 minutes, 1.50 euros) or by bike along the dedicated coastal cycle path (30-40 minutes). Parking is free but fills up by late morning in summer. See the events and festivals calendar for more details.
Boca do Inferno (Hell’s Mouth)
This dramatic cliff formation 2km west of the town center is Cascais’s most-visited natural attraction. Atlantic waves have carved a deep chasm into the limestone cliff, and during winter storms or high tide, water crashes into the cave with explosive force and a thunderous boom. On calm summer days it is a scenic viewpoint rather than a spectacle. A viewing platform with safety railings overlooks the chasm. There is a small market stall selling local crafts and snacks next to the viewpoint. Free entry, open 24 hours. A 25-minute walk from Cascais center along the coastal road, or bus M05 from the terminal. The best time for dramatic wave action is November through March, when Atlantic swells are largest. See the neighborhoods guide for more details.
Things to Do in Cascais: Museums and History
Cascais Citadel and Museum Quarter
The 16th-century Cascais Citadel (Cidadela de Cascais) sits at the western edge of the bay. Originally built to defend the Lisbon coast from pirate raids, it later served as the summer residence of the Portuguese royal family. Today the citadel houses the Pestana Cidadela Cascais hotel, art galleries, and an open courtyard. The on-site Museum Quarter includes the Casa das Historias Paula Rego, a striking red-concrete building designed by architect Eduardo Souto de Moura that displays works by the celebrated Portuguese-British painter. Entry to the museum is 5 euros (free on Sundays until 2pm). The citadel courtyard is free to enter. Open Tuesday to Sunday 10am to 6pm, closed Mondays. See the where to stay guide for more details.
Museu Condes de Castro Guimaraes
This whimsical 19th-century mansion overlooking Marechal Carmona Park was built by an Irish tobacco magnate and later owned by the Count of Castro Guimaraes. The museum’s eclectic collection spans Indo-Portuguese furniture, 17th-century azulejo tiles, rare manuscripts (including a 1505 illustrated chronicle of King Afonso Henriques), and a small zoo of taxidermied animals. The building itself, with its neo-Gothic turrets and cloister, is worth the visit. Entry is 4 euros (free on the first Sunday of each month). Open Tuesday to Sunday 10am to 1pm and 2pm to 5pm (until 6pm in summer). Located at the edge of Marechal Carmona Park. See the travel tips and FAQ guide for more details.
Santa Marta Lighthouse and Museum
This working lighthouse at the entrance to Cascais Marina dates from 1868 and features a small museum covering the history of Portuguese lighthouses and the maritime heritage of Cascais. The blue-and-white tiled lighthouse tower offers excellent views across the bay. Entry is 5 euros, combined lighthouse and museum. Open Tuesday to Sunday 10am to 5pm (summer hours until 6pm). The adjacent Farol Hotel has a terrace bar open to non-guests where you can have a drink with the same view.
Things to Do in Cascais: Parks and Outdoors
Marechal Carmona Park
This 2-hectare park in the center of Cascais provides a welcome green escape from the beach crowds. Shaded by mature trees, it has duck ponds, peacocks and chickens roaming freely, a small cafe, a children’s playground, and the Museu Condes de Castro Guimaraes at its edge. Free entry, open daily from 9am until sunset. The park hosts outdoor events during the Cooljazz festival in July and the Christmas Village in December. It is directly behind the Hotel Baia, a 3-minute walk from the town center.
Cascais to Estoril Coastal Promenade
The paved promenade (Paredao) connecting Cascais to Estoril and onward to Sao Joao do Estoril stretches roughly 3km one way. It passes Praia da Conceicao, Praia da Duquesa, Praia do Tamariz (Estoril), and several smaller coves. The walk is flat, wheelchair accessible, and lined with cafes and benches. At sunset the light over the Atlantic and the Sintra mountains creates spectacular views. Allow 45-60 minutes to walk from Cascais to Estoril. You can take the train back (one stop, 1.50 euros). Busy with joggers and cyclists early morning; crowded with families and strollers in the evening.
Things to Do in Cascais: Day Trips
Sintra
The UNESCO World Heritage town of Sintra, with its fairy-tale palaces and hilltop castle, is a 35-minute drive or 25-minute bus ride from Cascais. Bus 403 (Scotturb) runs from Cascais Terminal to Sintra roughly every 30 minutes from 7am to 8pm, costing 3.35 euros each way. Key sights include the colorful Pena Palace (14 euros, book online at parquesdesintra.pt to skip the queue), the Moorish Castle (8 euros), the Quinta da Regaleira with its initiation well (11 euros), and the National Palace in the town center (10 euros). A full day covers 2-3 sights comfortably. Go on a weekday and arrive at opening time (9:30am for most palaces) to avoid the worst crowds. The 403 bus gets very full in summer.
Cabo da Roca
Continental Europe’s westernmost point is a 20-minute drive from Cascais along winding coastal roads. The windswept cliffs drop 140 meters to the Atlantic. A lighthouse, a monument with coordinates (38°47’N 9°30’W), and a visitor center with a small cafe make up the site. Bus 403 from Cascais to Sintra stops at Cabo da Roca. The wind is intense year-round: bring a jacket. Free entry, open 24 hours. Combine with a visit to Guincho beach and the Sintra-Cascais Natural Park for a full day exploring the dramatic western coastline.
