Pool day passes in Cascais
Compare pool day passes in Cascais from €15. Ocean pools, resort brunches, and spa access at Arriba by the Sea, Sheraton Cascais, and The Oitavos.
Some links on this page are affiliate links. If you book an overnight stay, I may earn a small commission at no extra cost to you. I earn nothing from day pass bookings. Full disclosure.
Pool day passes in Cascais start at €15 for a saltwater ocean pool on the Guincho coastline. Three hotels and venues offer day access to non-guests: an outdoor Atlantic-fed pool, a luxury resort with dining packages, and an indoor seawater spa. None require an overnight stay.
Prices run from €15 to €75. The cheapest option is Arriba by the Sea, an open-air saltwater pool right on the Atlantic coast. At the top, the Sheraton Cascais Resort charges €75 for a Sunday brunch-and-pool package. The Oitavos sits in between at €30 for indoor spa access.
Cascais is a 30-minute train ride from Lisbon and makes an easy day trip. The outdoor pools get busy in July and August; book Arriba by the Sea ahead for weekend visits. The Oitavos is worth knowing about for cooler or overcast days when outdoor pools aren't appealing.
- Arriba by the Sea (€15–€20 / about $16–$21). Ocean saltwater pool on the Guincho coast, popular with locals and families.
- Sheraton Cascais Resort (€75 / about $79). Luxury brunch and pool packages in Quinta da Marinha.
- The Oitavos (€30 / about $32). Indoor heated seawater spa with jets, sauna, and Turkish bath.
Planning a trip to Cascais? Here are the tools I use and recommend:
How much does a pool day pass in Cascais cost?
Pool day passes in Cascais range from €15 to €75. Outdoor saltwater pools are the most affordable option. The Sheraton's dining-and-pool packages sit at the premium end, while The Oitavos offers a mid-range wellness option.
| Hotel | Price | Best for |
|---|---|---|
| Arriba by the Sea | €15–€20 | Ocean views, families, budget |
| The Oitavos | €30 | Wellness, indoor spa, cooler days |
| Sheraton Cascais Resort | €75 | Luxury, Sunday brunch, resort experience |
Is a pool day pass in Cascais worth it?
Yes, especially as a day trip from Lisbon. The train costs about €2.50 each way and takes 30 minutes. Arriba by the Sea's €15 entry is one of the cheapest day passes in Portugal, and the Atlantic saltwater pool setting is genuinely unique. For €30, The Oitavos spa circuit is excellent value compared to similar offerings in Lisbon.
Where to stay in Cascais
Cascais town is the best base for day visitors: 30 minutes by train from Lisbon, walkable to the beaches, the marina, and the old quarter. Albatroz Hotel is a charming clifftop boutique overlooking Cascais Bay. For something with more facilities, Pestana Cascais is right in town with ocean views.
Quinta da Marinha, 5km west, is where the Sheraton Cascais Resort sits and suits those who want a quieter golf resort atmosphere. Arriba by the Sea and the Sheraton are both in this direction; if you're aiming for those passes rather than the town centre, basing yourself at Quinta da Marinha saves a taxi each way.
Arriba by the Sea
Arriba by the Sea sits on the Guincho coast, about 10 minutes from Cascais centre. The saltwater pool is fed directly by the Atlantic, cold but striking, with open views of the waves. Entry is €15 on weekdays and €20 on weekends. Sunbeds and umbrellas are rented separately.
It's informal and unpretentious, popular with locals and families. Arrive before 11 AM on weekdays and you'll usually find space without a reservation. On summer weekends, book ahead.
Book direct: arribabythesea.com or call +351 21 486 0020
✅ DON'T FORGET TRAVEL INSURANCE!
SafetyWing is an affordable subscription travel insurance that you can purchase without knowing your itinerary in advance and even after departure.
>> Click here for info and current pricing <<Sheraton Cascais Resort
The Sheraton Cascais Resort is in Quinta da Marinha, surrounded by golf courses. Day access comes through their Summer Collection packages, which combine dining with pool use. The Sunday Pool Brunch costs €75 and includes a full buffet, live entertainment, and afternoon pool access. On weekdays, the Sip & Soak deal is the same price: a light lunch and pool access from 1 PM to 7 PM.
These are seasonal offers; confirm availability before visiting.
Book direct: sheratoncascaisresort.com or call +351 21 482 9100
The Oitavos
The Oitavos is a modern design hotel in Quinta da Marinha. The day pass covers the Balneotherapy circuit: an indoor heated seawater pool with jets, sauna, and Turkish bath. At €30, it's the best choice on cooler or windy days when outdoor pools aren't appealing. Swim caps are mandatory in the pool area.
Book direct: theoitavos.com or call +351 21 486 0020
Frequently asked questions
Is the water in the Cascais ocean pools cold?
Yes. Pools like Arriba by the Sea are fed directly by the Atlantic, so water temperatures typically sit around 17°C to 20°C (63°F to 68°F) even in summer. Refreshing but brisk.
Do I need to book Arriba by the Sea in advance?
For weekends in July and August, yes. It's a large venue though, so arriving before 11 AM on weekdays usually gets you a spot without a reservation.
Are swim caps required in Cascais pools?
Not at outdoor saltwater pools like Arriba. For indoor hotel spas like The Oitavos or the Sheraton's wellness facilities, swim caps are mandatory. Pack one just in case.
More pool day passes near Cascais
Cascais is a 30-minute train ride from Lisbon, making it easy to combine both in a trip. Prices in Lisbon run higher: €25 to €95 for rooftop pools. For warmer water and bigger resort pools, the Algarve has all-inclusive options from €40. Porto offers a similar mix of spa pools and saltwater pools further north.
More pool day pass destinations: Algarve, Lisbon, Madeira, Porto, Mallorca, Ibiza.