A coastal cliff with a lighthouse, rocky shoreline, and turbulent sea.

Adults Only in Costa Alentejana

  • Change your mind

    Book hotels with free cancellation

  • Treat yourself

    Sign in to save 10% or more on thousands of hotels
    Sign in

  • Be picky

    Search almost a million properties worldwide

Check availability on Costa Alentejana Adults Only

Tonight
13 Oct - 14 Oct
Tomorrow
14 Oct - 15 Oct
This weekend
16 Oct - 18 Oct
Next weekend
23 Oct - 25 Oct

Our top choices for Costa Alentejana adults-only hotels

A poolside area with lounge chairs and a wooden fence in the background.
A modern interior with round tables and cushioned seating, a central counter with a display case, and a patterned floor.
A rooftop patio with a white sofa, a small round table, and a wooden staircase.
A modern living room with a wooden dining table, black sofa, and a kitchen area with grey cabinets and a coffee maker.

1. Lazy Days Adults Only Duna Parque Resorts & Hotels

Lazy Days Adults Only Duna Parque Resorts & Hotels
Odemira
Canada
Mitchell
S$105
includes taxes & fees
21 Oct - 22 Oct
Lazy Days Adults Only Duna Parque Resorts & Hotels
A modern outdoor seating area with glass walls, wooden flooring, and metal chairs.
A spacious dining area with large windows overlooking the sea, featuring wooden tables and chairs, and hanging pendant lights.
An aerial view of a coastal area with a beach, a large body of water, and a road curving through the landscape.
A modern outdoor deck with a view of the ocean and distant landscape.

2. Palmares Beach House Hotel - Adults Friendly

Palmares Beach House Hotel - Adults Friendly
Lagos
Canada
Clayton
S$279
includes taxes & fees
17 Oct - 18 Oct
Palmares Beach House Hotel - Adults Friendly
A swimming pool with lounge chairs and umbrellas, surrounded by a fenced area with palm trees and a building with warm lighting.
A coastal beach with clear waters, rocky formations, and a sandy shore.
A courtyard with a wooden staircase leading to a covered area, surrounded by lush greenery and a red building.
An outdoor dining area with wicker furniture and a wooden deck.

3. Villas D. Dinis Charming Residence - Adults Only

Villas D. Dinis Charming Residence - Adults Only
Praia Dona Ana
United States
Anne
S$148
includes taxes & fees
6 Nov - 7 Nov
Villas D. Dinis Charming Residence - Adults Only
A rooftop pool with a view of a marina and boats.
A modern hotel lobby with a sofa, a rug, a wooden sculpture, and large windows offering a view of palm trees and a beach.
A modern dining area with large windows, multiple tables, and hanging pendant lights.
A modern living room with a white sofa, two armchairs, a coffee table, and a large pillar.

4. Lagos Avenida Hotel

Lagos Avenida Hotel
Santo Amaro
United Kingdom
Ella
S$229
includes taxes & fees
11 Nov - 12 Nov
Lagos Avenida Hotel
A buffet area with a variety of food items, including cakes and pastries, arranged on a counter with a tiled floor and large windows in the background.
A stone-paved corridor with a wooden fence, a stone wall, and a door leading to a room with tiled flooring.
A pool area with lounge chairs, a pergola, and a statue.
A hotel room with a large bed, a desk, a television, and a wicker chair.

5. Charming Residence & Guest House Dom Manuel I (Adults only)

Charming Residence & Guest House Dom Manuel I (Adults only)
Praia Dona Ana
Canada
roohollah
S$153
includes taxes & fees
5 Nov - 6 Nov
Charming Residence & Guest House Dom Manuel I (Adults only)
A restaurant with tables set for dining, a pool area visible through large windows, and greenery hanging from the ceiling.
A spacious living room with a yellow sofa set, a large plant, and a blue and white patterned rug.
A pool area with lounge chairs and a view of the beach.
A restaurant with wooden tables and chairs, hanging plants, and a TV mounted on the wall.

6. AP Oriental Beach - Adults Friendly

AP Oriental Beach - Adults Friendly
Praia da Rocha
United Kingdom
stanton
S$138
includes taxes & fees
5 Nov - 6 Nov
AP Oriental Beach - Adults Friendly
A beach with rocky formations and a clear view of the sea.
A balcony with a view of a marina, a round table, and two chairs.
A modern living room with a sofa, two chairs, a round coffee table, and a macrame wall hanging.
A modern bedroom with a large bed, a wooden mosaic wall, and a balcony with chairs.

7. Jupiter Marina Hotel - Couples & Spa

Jupiter Marina Hotel - Couples & Spa
Portimão
Canada
Janet
Jupiter Marina Hotel - Couples & Spa
A living room with a sofa, a coffee table, and decorative plants.
A modern living room with a glass-top dining table, white furniture, and a high ceiling with exposed beams.
A pool with artificial grass, lounge chairs, and potted plants.
A modern bedroom with a bed, a chair, a mirror, and decorative wall art.

8. Villa Zawaia B&B Adults Only

Villa Zawaia B&B Adults Only
Centro Histórico
United States
Ivory
S$144
includes taxes & fees
11 Nov - 12 Nov
Villa Zawaia B&B Adults Only
A clear view of a swimming pool with a view of the sea and distant land.
A spacious dining area with high ceilings, large windows, and a variety of seating arrangements.
A sauna with wooden benches and a glass door leading outside.
A modern hotel lobby with a reception desk, seating area, and large windows.

9. Longevity Health and Wellness Hotel - Adults Only

Longevity Health and Wellness Hotel - Adults Only
Portimão
Canada
Samantha
S$180
includes taxes & fees
9 Nov - 10 Nov
Longevity Health and Wellness Hotel - Adults Only
A beach with clear blue water, sandy shore, and rocky cliffs.
A wooden boardwalk leading to a beach with buildings in the background.
A modern living room with a sofa, a coffee table, and a potted plant.
A swimming pool with lounge chairs and umbrellas, surrounded by palm trees and a building with balconies.

10. Hotel Alcaide

Hotel Alcaide
Portimão
United Kingdom
Martin
S$91
includes taxes & fees
1 Nov - 2 Nov
Hotel Alcaide
View all properties

Top Costa Alentejana Hotel Reviews