Welcome to Thalassa Boutique Hotel - Adults Only – Argostoli (Kefalonia)

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From178US$ /night
Check-in
10Sept2025Select date
Check-out
11Sept2025Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Hotel

Lassi, Argostoli (Kefalonia), Greece, 28100

Thalassa Boutique Hotel - Adults Only is a 4-star romantic retreat perched above Paliostafida beach, featuring two swimming pools surrounded by Mediterranean gardens of local herbs, pine and olive trees.

Elegant Room Options

Elegant rooms at Thalassa Boutique Hotel - Adults Only exude timeless sophistication with custom-made furniture, Italian fabrics, and Mediterranean colors. Accommodations range from Deluxe Garden View rooms to the signature White Suite with Panoramic Sea View, all featuring king-size beds and private balconies or terraces.

Farm-to-Table Dining

The Mediterranean breakfast at Thalassa Boutique Hotel features organic products from the hotel's farm including fresh eggs, olive oil, and homemade jams. Eolia Pool Lounge serves authentic Greek dishes using locally produced ingredients, while Alaia Lounge Bar offers signature cocktails with stunning sunset views.

Pools and Wellness

Two freshwater swimming pools invite guests to lounge under olive trees with refreshing drinks from the pool bar. The hotel features a fully equipped fitness center with TECHNOGYM instruments and a massage room for complete rejuvenation.

Strategic Island Location

Located in Lassi resort, Thalassa Boutique Hotel offers easy access to Makris Gialos beach just 500m away and Paliostafida beach directly below the property. The hotel is 2km from Argostoli capital, 5km from the airport, and serves as an ideal starting point for exploring Kefalonia's beaches and villages.

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Select your room type

Choose from doubles, suites, or family rooms, many with breakfast, flexible cancellation, and promotional rates
Superior Double or Twin Room
Max:
2 persons
28 m² 
Bed options:
1 Double bed
Heating
Balcony
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Superior Double or Twin Room Garden View
Max:
2 persons
30 m² 
Bed options:
1 Double bed
Heating
Balcony
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Deluxe Double Room
Max:
2 persons
28 m² 
Bed options:
1 Double bed
Heating
Balcony
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Getting around

A guide to all available transportation options

City Centre
Argostoli (Kefalonia) 2.0 km
Airports
Kefalonia (EFL) 6.2 km

Facilities

Boutique hotels design their amenities with your relaxation and unique travel experiences in mind

General

  • Non-smoking rooms
  • Free Wi-Fi
  • Parking
  • Safe deposit box
  • 24-hour reception
  • Pets allowed
  • Security
  • Adults only
  • Fireplace
  • Smoke detectors
  • Electric vehicle charging station
  • Fire extinguishers

Sports & Fitness

  • Fitness centre

Services

  • Airport shuttle
  • Room service
  • Housekeeping
  • Car hire
  • Laundry
  • Dry cleaning
  • Tours/Ticket assistance

Dining

  • Restaurant
  • Bar/ Lounge area

Business

  • Fax/Photocopying

Spa & Leisure

  • Seasonal outdoor pool
  • Beach umbrellas
  • Sun loungers
  • Sun terrace
  • Garden area
  • Spa centre
  • Back massage
  • Head massage
  • Full body massage
  • Foot massage

Room features

  • Air conditioning
  • Soundproofed rooms
  • Garden furniture
  • Ironing facilities

Bathroom

  • Free toiletries

Media

  • AM/FM alarm clock
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Location

Lassi, Argostoli (Kefalonia), Greece, 28100
Map view
Lassi, Argostoli (Kefalonia), Greece, 28100
Nearby
Strada del Faro di San Teodoro
Casa Rossa
440 m
Beach
Paliostafida beach
310 m
Paralia Makris Gialos
510 m
Restaurants
Tzogias Taverna
730 m
Lassi
Aqua Marina
550 m
not known
Zorbas Restaurant
690 m
Main Lassi Rd
Tanu's
660 m
Restaurant
Butler's House
800 m
Lassi Aerodromiou Argostoli
Da Veronica Bar
730 m
Nearby Veronica's Jewellery
Da Veronica
780 m
Restaurant
Taverna Sirtaki
910 m
Main Road
Nefeli Restaurant
890 m
Restaurant

Reviews and Ratings

Real comments from travelers who have already stayed
84%
said they enjoyed their stay and plan to return.
Friendly staff
Great location
Substandard rooms
Unsatisfactory sunbeds
8.4/10
Great
Rooms
6.8
Location
8.3
Service
8.3
Dining
6.5
Guest reviews
8.4/10
based on 7 reviews
4.5/5 based on 670 reviews
9.2
9.2/10 based on 322 reviews
#7 of 20 hotels in Lassi based on Tripadvisor
Michael
United States, January  2024
8.4/10

I had a lovely stay at the hotel. The rooms were very clean, modern, and comfortable, with a nice view from the balcony. However, there was not enough soap in the room. The service was excellent, with friendly and helpful staff going above and beyond. The location was perfect, close to the beach but away from the noise. The dining experience was good with fresh fruits and local delicacies. Overall, great value for money.

Rooms
8.0
The rooms were very clean and modern, with a comfortable bed and a small balcony to enjoy the view. However, there was not enough soap in the room.
Service
9.0
The staff were very friendly and helpful throughout my stay, making me feel welcome and well taken care of.
Location
10.0
The location was perfect, just a short walk from the beach and close to amenities, yet peaceful with great views of the sea and mountains.
Dining
7.0
The dining experience was good with a variety of options including local delicacies. However, it could get crowded quickly during peak times.
Facilities
8.0
The hotel had nice facilities including a pool area and a covered seating area, adding to the overall comfort of the stay.
Kenneth
United Kingdom, January  2024
7.6/10

The hotel had a substandard room for the price we paid, even though it was supposed to be a sea view room. It felt below the standard for a 1 or 2-star accommodation. However, the service was exceptional with incredibly thoughtful and kind staff. The location was very good with two pools providing shade, but the sunbeds were not satisfactory. The dining experience had some flaws like raw chicken served, but the Belgian waffles were enjoyable.

Rooms
5.0
The room was below expectations for the price, not meeting the standards of a 1 or 2-star accommodation.
Service
9.0
The service was outstanding with incredibly friendly and helpful staff who quickly resolved any issues.
Location
7.0
The hotel had a great location, close to nice beaches and within walking distance to the town of Lassi, although the sunbeds were unsatisfactory.
Dining
6.0
The dining experience had some issues like raw chicken being served, but the overall dining quality was good with delicious Greek delights and Belgian waffles.
Facilities
8.0
The hotel had good facilities that were well-maintained and enjoyable.
Friendly staff
Substandard rooms
Kyle
United Kingdom, November  2023
7.4/10

The hotel is situated in a quiet area with a beautiful view over the bay, offering clean rooms with ample wardrobe space and convenient amenities. The service from the staff is pleasant and unobtrusive; however, there were minor issues with aggressive behavior. The location has great potential with stunning views but lacks atmosphere. The dining options are simple and healthy, with both indoor and outdoor seating available. Overall, a peaceful stay with some room for improvement.

Rooms
8.0
My room just above the reception was spacious and well-equipped with a large wardrobe, a handy fridge, and a safe for valuables. The layout was more of a room with a shower but had a separate cubicle for the toilet.
Service
7.0
The staff showed up to our room promptly and was generally pleasant and helpful, although there were instances of rudeness reported.
Location
7.0
The hotel is situated in a quiet area with a beautiful view over the bay, providing a lovely pool bar and covered seating area. While the location is stunning, it can feel lacking in atmosphere at times.
Dining
7.0
The dining experience was simple and offered healthy options with indoor and outdoor seating choices. It provided good value for the money, although the variety could be improved.
Facilities
8.0
The facilities, including the pool bar and seating areas, were clean and well-maintained.
Rachel
United Kingdom, May  2023
7.6/10

The hotel offers comfortable and spacious rooms, though the value for money aspect is questionable. The service is described as friendly and helpful overall. The location is praised for its views and convenience to beaches and local attractions.

Rooms
7.0
The rooms are very comfortable and spacious.
Service
8.0
The staff are all super friendly and helpful.
Location
9.0
The location is fabulous with great views over the sea and coastline.
Dining
6.0
The dining experience was okay, not particularly special.
Facilities
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Check-in
10Sept2025Select date
Check-out
11Sept2025Select date
Rooms and Guests2 Guests, 1 Room