Cascais sits about 30 kilometers west of Lisbon, and once you live here the city stops being a destination and becomes a decision. Every trip in starts with the same two questions: train or car, and is there a cheaper way to do the thing we’re going in to do. Both have less obvious answers than you’d expect, and the second one is where the real money is.
I’ve checked every price below against the operators and the attractions themselves rather than the aggregator sites, which are frequently wrong or a year out of date.
The Train, and Why It Usually Wins
The Linha de Cascais runs from Cascais station to Cais do Sodré, right on the river at the edge of the Baixa. It’s a suburban line, not a regional service, and that distinction matters later when we get to discounts.
On the current timetable, in force since April 2026, weekday trains take 33 minutes on the express services that run during the morning and evening peaks, and 40 minutes the rest of the time when they stop everywhere. Trains leave Cascais every 15 minutes through the morning peak, every 20 minutes across the middle of the day, and every half hour late at night. The first train out of Cascais is at 05:30 and the last is at 00:40, with the last train back from Cais do Sodré at 01:30. At weekends it runs later still, past two in the morning.
One catch worth knowing before you plan a Belém day. The peak express trains skip Santos, Belém, Santo Amaro, Paço de Arcos, Caxias and Cruz Quebrada. If Belém is where you’re going and you’re traveling during peak hours, you need a stopping train or a change at Algés. There are no express services at weekends, so every train stops everywhere and Belém is straightforward.
The line runs along the water for most of its length, which no journey planner tells you. Carcavelos, Parede, São Pedro and Estoril all sit within sight of the Atlantic, and the stretch into Algés looks across the estuary. It’s a better forty minutes than the same forty minutes on the A5.
Navegante, and Which Pass You Actually Need
The navegante pass is the single biggest saving available to anyone living in Cascais who goes into Lisbon with any regularity, and its pricing has held flat for seven years running, including 2026.
The one you need is navegante metropolitano at €40 a month, which covers the entire Lisbon metropolitan area. That’s the Cascais line, the Metro, Carris buses and trams, Carris Metropolitana and the MobiCascais buses, all on one card. I could not confirm that the Transtejo river ferries are included, so check before relying on it. The cheaper €30 version only covers a single municipality, so it will get you around Cascais and no further. There’s a €20 rate for over-65s.
Two things about it change the math for families completely.
The first is navegante Família, which caps a household at €80 a month no matter how many members it covers, the equivalent of two full passes. It needs at least three people in the household sharing the same fiscal address, and every member needs their own personalized photo card. Two adults on their own don’t benefit, since two passes already cost €80. The saving starts at the third travelling adult.
The second is that young people travel free. Ages 4 to 18 need nothing but an ID document proving they’re under 19, under-4s travel free without a card at all, and the free tier now runs to 23 rather than stopping at student status. It isn’t automatic though: the pass still has to be registered once and then reloaded, free, every month. For a family with kids, the entire transport bill into Lisbon is two adult passes and nothing else.
A single from Cais do Sodré to Cascais is €2.90, and there’s a discounted Lisboa-Cascais return at €5.10, so the €40 pass pays for itself at roughly seven round trips a month. Below that, buy singles on a €0.50 Navegante Ocasional card. Above it, every additional journey anywhere in the metropolitan area is free. Getting the card sorted is worth doing through MobiCascais, which handles navegante top-ups alongside municipal parking and the bike share.
When the Car Actually Makes Sense
Two roads go in. The A5 is the fast one and it’s tolled, though the toll is small enough that it never decides anything. The Marginal, the N6 along the coast, is free, slower, and much better looking.
Parking is what makes driving expensive. Lisbon approved a rise in EMEL street parking rates in July 2026, the first in about fifteen years, taking the green zone to €0.85 an hour, yellow to €1.25, red to €1.70 and brown to €2.10. The reporting at the time didn’t name an effective date, so you may still be paying the old rates, which were five to ten cents lower per hour. The time caps bite harder than the hourly rate: four hours maximum in green and yellow, and only two hours in red. Central Lisbon is largely red. A leisurely museum day plus lunch does not fit inside two hours, and the car parks that don’t cap you charge considerably more than the street.
The car wins in a narrow set of cases. It wins when you’re carrying something, when you’re going somewhere the line doesn’t reach, when you’re continuing on somewhere else afterward, or when you’re traveling with someone for whom the walk at either end is the problem. It also wins for Parque das Nações, which is at the opposite end of the city from Cais do Sodré and turns into a train plus a metro ride.
For anything in Belém, the Baixa, Chiado or Cais do Sodré itself, the train wins on almost every axis. You arrive in the middle of it instead of spending the last twenty minutes circling for a space.
Where to Actually Go
Grouped by what the train makes easy, since that’s the constraint that matters.
Belém
Belém has its own station on the line, and the cluster around it is dense enough for a full day without moving the car you didn’t bring. The Mosteiro dos Jerónimos is the anchor at €18 for the cloister, with the church free to enter, and the Torre de Belém is €15. The Torre de Belém, the Padrão dos Descobrimentos, the Museu Nacional dos Coches with its absurd collection of royal carriages, the Museu de Marinha, and the MAAT down on the waterfront are all within walking distance of each other. So is Pastéis de Belém, where the queue moves faster than it looks.
The riverside path from Belém back toward Algés is flat, car-free and runs the whole way, which makes this the easiest area to do with small children on foot.
Parque das Nações
The Oceanário and the Pavilhão do Conhecimento are five minutes’ walk apart, which makes this the strongest single destination in the city for a family day. The Oceanário has been voted the world’s best aquarium more than once and takes about an hour and a half. The Pavilhão is a hands-on science center where everything gets touched, climbed on and replayed, and it lands best with kids roughly between four and twelve.
This is the one place where I’d genuinely consider driving, because from Cascais it’s a train to Cais do Sodré and then the Metro out to Oriente. Parking there is plentiful by Lisbon standards, with several hundred spaces at Parque da Doca, the FIL and Oriente station itself.
The Baixa, Chiado and the Castelo
Cais do Sodré puts you at the bottom corner of the Baixa, so the entire grid, Praça do Comércio, the Chiado and the climb up to the Castelo de São Jorge are all on foot from the platform. The Time Out Market is directly above the station, which is convenient and priced accordingly.
The Gulbenkian
The Museu Calouste Gulbenkian reopened in July 2026 after a renovation, and it’s the one museum in Lisbon I’d tell anyone to prioritize. Entry to the museum is €16, or €18 for the all-inclusive ticket that adds the Centro de Arte Moderna.
Both of those are numbers you can mostly avoid paying. Entry is free every Sunday from 14:00, and free at all times for under-18s. The Cartão Gulbenkian is free to join and takes 50% off for under-30s, 20% for over-65s and 10% for everyone between, and it gets under-30s in free on Saturdays between 18:00 and 21:00. The gardens are free and are among the best public space in the city.
The Annual Passes, and Whether They Pay
Three passes cover most of what a family does in Lisbon. Two are worth buying and one depends entirely on which month you buy it.
Oceanário de Lisboa
The Membership program is €80 a year for one adult, or €185 for a group covering one adult holder, one guest and one child aged 3 to 12, with each extra member at €65. It runs 12 months from the day you activate the card at the visitor desk.
Members get unlimited entry, Fast Line access so you skip the booking step, 10% off the shop and restaurant, and two guided-visit tickets a year each. A single visit for that same group of three costs around €65, so the card clears its cost just under the third visit. Worth knowing when you do the sum: the widely quoted €25 adult and €15 child prices are the late-afternoon floor, not a flat rate, because tickets are priced by time slot and midday costs more.
Jardim Zoológico
The Zoo’s annual pass isn’t on the ticket page, which is why most people never find it. It runs through the Grupo dos Amigos do Jardim Zoológico, the membership society founded in 1914. An adult pass is €85, a child aged 3 to 12 or a senior is €60, and a family group of three or more paying people is €60 each, with a €10 annual membership quota on top. You get unlimited entry, 20% off the official shops and 10% off holiday programs and birthday parties.
The pass is valid “durante o ano civil em que é adquirido”, for the calendar year in which it’s bought, not twelve months from purchase. Buy it in September and it dies on 31 December. Against day tickets at €31 adult and €19 child you need three or four visits to break even, and finding four Zoo trips in the last quarter of the year is optimistic. Buy in January, or ask the Secretaria whether a late purchase can be dated forward before you pay.
Cartão Circuitos Ciência Viva
This is the best value of the three, and the least advertised. Circuitos Ciência Viva is €70 a year and covers a nuclear family, meaning two adults plus all children up to 17. Children aged 18 to 25 can be added at €10 each. It gives free entry to all 22 Ciência Viva science centers in Portugal for 12 months from purchase.
Locally that’s the Pavilhão do Conhecimento, where the family day ticket by itself is €35. Two visits and the card has paid for itself. It doesn’t cover ticketed workshops at the centers, though many activities are free and run at weekends.
The real argument for it isn’t the Pavilhão. It’s the other 21 centers, spread deliberately across the country instead of clustered around the two big cities. The Museu do Côa sits on a UNESCO-listed Paleolithic rock art valley in the Douro. Mina de Ciência at Lousal is a decommissioned pyrite mine in the Alentejo, right on the route down to Comporta. Constância has an astronomy park where the Tejo meets the Zêzere. Three are in the Algarve, and the network has a habit of putting them in good buildings: a convent in Estremoz, a church in Tavira, a factory in Aveiro, a former prison in Vila do Conde.
It also carries a partner network of just over 300 places, and the Lisbon end of it is better than the marketing suggests. Confirmed in the partner catalogue: 20% off at the Gulbenkian, 20% at the Museu de Marinha, 20% at the Aquário Vasco da Gama, 25% at the Centro Cultural de Belém, 15% at the Oceanário, 15% at the MAAT, 10% at the Zoo and 10% at the Jardim Botânico Tropical. The card has to be shown physically at the ticket office each time. Then there’s 30% off CP rail fares, which is the one that changes what the card is for.
The Discount Stack
Separately from the passes, a handful of free cards stack onto individual visits, and for anyone going a few times a year they’re worth more than any membership.
Fifty-Two Free Days at the National Museums
This is the biggest single benefit of living here and it goes largely unused. Residents in Portugal get free entry to the 37 museums, monuments and palaces run by Museus e Monumentos de Portugal, on any day of the week, 52 days a year, on showing a Cartão de Cidadão at the ticket office. Locally that’s Jerónimos, the Torre de Belém and the Museu Nacional dos Coches. Further afield it covers Alcobaça, Batalha, the Convento de Cristo at Tomar and the Palácio Nacional de Mafra.
This replaced the old free-Sunday-morning rule, which still gets repeated across the internet. It’s now any day you like, up to 52 of them.
The same operator gives free entry to children up to 12, to teachers and students at any level of education, and to unemployed EU residents. Anyone 65 or over, anyone between 13 and 24, and any family group of at least one adult plus a minor gets 50% off. Between the free days and the family discount, a Belém monument day should rarely cost a resident family the full price.
Clube RIK&ROK
Auchan’s free kids’ club card gets one child aged 4 to 10 into the Jardim Zoológico free, and it’s listed on the Zoo’s own price page rather than being a rumor. The conditions matter: the accompanying adult buys at the physical ticket office rather than online, the child needs ID at the counter, and it doesn’t stack with other discounts. You sign up in store or on the Auchan&Eu site and get a digital card immediately.
That’s a €19 child ticket saved, less the 5% online discount you give up on the adult ticket, so about €17.50 a visit for a card that costs nothing. The Zoo lists two comparable schemes for older kids: Clube Pelicas up to age 10, and ACP Kids up to 12, which is the one that keeps working once a child ages out of RIK&ROK.
The 30% CP Discount
The Ciência Viva card’s rail partnership is 30% off return journeys on Intercidades, Regional and InterRegional services, for routes where one of the science centers has a station nearby.
The mechanics are old-fashioned. You buy at a CP ticket office showing the card and photo ID, or on board where the station is unstaffed, which rules out the app. On the return leg you have to show the ticket stamped by the center, or its entry ticket dated between your outbound and return. Turn up without all of it and they charge you the difference back to the full fare.
Note what isn’t covered. Alfa Pendular is out, so the fastest Lisboa to Porto trains don’t qualify. Neither does the Linha de Cascais, because it’s an urban service rather than a Regional one, so this does nothing for your commute. What it’s good for is the Douro line to Pocinho for the Museu do Côa, which is one of the better train journeys in Europe and beats driving the same valley.
What the Oceanário and the Lisboa Card Give You
The Oceanário has none of the kids’ club deals. Free entry there is under-3s and visitors with a disability certificate of 60% or higher, whose companion gets 60% off. Otherwise it’s 5% for booking online, 10% with an ACP card, and 15% with either a Lisboa Card or the Ciência Viva card, neither of which stacks with anything else.
On the Lisboa Card itself: it’s built for tourists compressing a city into three days. If you live half an hour away you have unlimited weekends and no reason to pay for that compression. Every discount it carries is available through a cheaper route.
What I’d Actually Buy
If you’re in Cascais with kids and you go into Lisbon regularly, the order is straightforward.
Start with navegante metropolitano, or the €80 household cap if there are two adults. It pays for itself at about five round trips a month and it removes the car from the decision entirely.
Add the RIK&ROK card, because it’s free and saves a child’s Zoo entry every time.
Then buy the €70 Ciência Viva card, which is the best-value single purchase on this page. It covers the Pavilhão twice over, discounts the Gulbenkian, cuts long-distance rail by 30%, and turns 21 other parts of the country into places with a reason to stop.
Take the Oceanário membership if you’ll go three times in a year, which most families with young kids will. Leave the Zoo pass until January unless the ticket office tells you otherwise, and use RIK&ROK in the meantime.
Skip the Lisboa Card. It isn’t built for people who live here.
If you’re weighing up the move rather than already here, I’ve written separately about how Lisbon compares to Barcelona and about getting the utilities and admin set up. And if the plan is to see the rest of the country rather than just the capital, renting a campervan near Cascais covers the other way of doing it.
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