Four days on the Lisbon coast without a car: trains, ferries and buses

The network you are actually using

Four systems do all the work. The Cascais line runs from Cais do Sodré along the water every 20 minutes, reaching Estoril in 33 minutes and Cascais in about 40, for roughly €2.30 with a rechargeable card. The Sintra line leaves Rossio every 20 minutes and takes 40 minutes for a similar fare. Fertagus trains cross the 25 de Abril bridge from Roma-Areeiro to Setúbal in about an hour for around €5. And the Tagus ferries from Cais do Sodré, Terreiro do Paço and Belém cross to the south bank in 10-25 minutes for €1.50-3.

Buy a Navegante card for €0.50 at any metro machine and load it with zapping credit rather than buying paper tickets — it works on metro, trams, buses, ferries and the suburban trains, and it charges the correct fare automatically. There is also a 24-hour ticket covering the trains and ferries as well as city transport for roughly €10-11, worth it on the Cascais and Sintra days but not on the others. Across four days, total transport on this itinerary runs about €35-45 per person. That is the entire argument for leaving the car at the airport.

Day 1: the Cascais line, station by station

Take the 09:00-ish train from Cais do Sodré and get off first at Carcavelos, 20 minutes out, where a ten-minute walk brings you to the widest beach on the line — a kilometre of sand with surf schools and beach cafés, and a fort at the eastern end. Reboard and continue to Estoril for the palm-lined gardens and the seafront promenade, then walk the Paredão, the paved seaside path that runs 3 km from Estoril to Cascais past a string of small coves. It takes 45 minutes at a stroll and is the best free hour on this coast.

In Cascais, the bay and the old fishing harbour occupy an afternoon: the Museu Condes de Castro Guimarães in its seaside garden, the red-and-white Casa das Histórias Paula Rego for about €5, and the sea blowhole at Boca do Inferno, twenty minutes' walk west. Cascais runs a municipal bike scheme and there is a flat cycle path out to Guincho beach, 9 km along the dunes, which is the one bit of this coast that genuinely wants wheels. Sleep in Cascais: seafront and old-town hotels run €120-220 in shoulder season, guesthouses inland €80-130.

Day 2: Cascais to Sintra the coastal way

Do not backtrack to Lisbon. The bus from Cascais terminal to Sintra runs up the coast via Cabo da Roca, taking about 70 minutes for roughly €4-5, and it is one of the best-value bus rides in Portugal: cliff road, Guincho dunes, the westernmost point of mainland Europe, then over the shoulder of the Serra into Sintra. Get the first departure you can, ideally before 09:30, and allow 30-40 minutes at Cabo da Roca, where the bus stops and the following service picks you up an hour or so later. Check the return timing at the roadside board before you walk to the lighthouse.

Arriving in Sintra by late morning, buy the 434 hop-on bus ticket at around €13 if you want the Moorish castle and Pena, or walk 20 minutes from the station to Quinta da Regaleira, the eccentric 1900s estate with the initiation well, for about €15. Monserrate, 4 km out and reached on the 435 bus, is the quieter and prettier palace-plus-garden combination for roughly €12. Sleep in Sintra town or São Pedro: converted quintas run €140-250, simple guesthouses €90-140, and the hill empties dramatically once the day-trippers leave at 18:00.

Day 3: back over the river to the south bank

Train back from Sintra to Rossio, 40 minutes, drop bags, then walk to Cais do Sodré and take the ferry to Cacilhas — ten minutes, about €2, with the whole Lisbon waterfront unrolling behind you. From the Cacilhas terminal it is five minutes on foot to the riverside restaurants under the cliff, where the classic move is lunch facing the city with fish or a cataplana at €14-24. Book a table at weekends; these places have been popular for twenty years and the terrace seats go first. Afterwards, the 101 bus climbs to the Cristo Rei statue, where a lift up the pedestal costs around €6.

For the beach half of the day, take a Carris Metropolitana bus from Cacilhas or Pragal towards Costa da Caparica, 25-35 minutes for €2-3. Caparica is a 15 km run of Atlantic sand backed by dunes, and in summer a narrow-gauge beach train runs south along it from June to September, stopping at successive beach bars. It is where Lisbon actually swims. Sleep back in Lisbon at Cais do Sodré or Baixa — €140-240 for a mid-range double — or stay on the south bank in Almada and Caparica at €70-110.

Day 4: Setúbal, the Sado and Tróia

Take a Fertagus train from Roma-Areeiro or Entrecampos to Setúbal, about an hour for €5, crossing the bridge with a view down the estuary. From Setúbal station it is a 15-minute walk to the Mercado do Livramento, the tiled fish market at its liveliest from 08:00 to 12:00, where the Sado's catch — cuttlefish, sole, clams, the region's famous choco — is laid out under painted panels. Lunch is choco frito, cut into strips and fried, at €10-14 in the tascas along Avenida Luísa Todi, with a glass of the peninsula's Castelão red for €2.50.

In the afternoon, choose between a dolphin-watching boat into the estuary, where a resident bottlenose population lives year-round, at €30-45 for two to three hours, or the passenger ferry across to Tróia, 20 minutes, for the sandbar beaches and the Roman fish-salting ruins. Both leave from the Setúbal waterfront within a few hundred metres of each other. Sleep in Setúbal at €70-110 for a double, easily the best value on this itinerary, or take the last train back to Lisbon around 22:00 if you would rather wake up in the city.

Where the no-car plan genuinely hurts

Three places on this coast punish you for not driving. The Arrábida beaches — Portinho da Arrábida, Galapinhos, Figueirinha — have only a summer shuttle service and a thin off-season bus, and the road down to Portinho is restricted to shuttles in August; without a car, go by boat trip from Setúbal instead. Comporta and the rice-field coast south of the Sado are effectively unreachable without wheels. And Cabo Espichel, the empty clifftop sanctuary beyond Sesimbra, sees a handful of buses a week.

Ericeira is the honourable exception people assume is impossible: direct buses run from Campo Grande in Lisbon in about 75 minutes for €6-7, several times a day, and the town is small enough to walk end to end in twenty minutes. If you want it, treat it as a separate two-night trip rather than squeezing it into this loop, because Ericeira to Sintra by bus involves a change at Mafra and eats a morning. Óbidos, similarly, is a direct express coach from Lisbon at about 60 minutes and €8-9, not a stop on any coastal chain.

Costs, luggage and the sleeping plan in summary

Four nights: one in Cascais at €120-220, one in Sintra at €90-250 depending on whether you want a quinta or a guesthouse, and two in Lisbon or Setúbal at €70-240. Transport across the four days totals about €35-45 with a zapping card. Entries are the real cost: Sintra alone can run €30-45 a person if you do two palaces plus the hop-on bus, so pick two sites rather than four. Add €30-45 if you take the Sado dolphin boat.

On luggage: do not haul a big case up to Sintra. Either book your Lisbon room for the whole stay and travel out with a daypack, paying for the room on the nights you are away, or use a left-luggage service near Rossio or Santa Apolónia at roughly €5-7 a bag per day. Sintra's station-to-town walk is uphill on cobbles and its guesthouses often sit up staircases. The one genuine argument for booking a Lisbon base for all four nights: it removes packing entirely, at the cost of two hours of extra train time across the trip.