Thalassa Boutique Hotel - Adults Only Argostoli  Exterior photoThalassa Boutique Hotel - Adults Only Argostoli  Exterior photoThalassa Boutique Hotel - Adults Only Argostoli  Exterior photo
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From178US$ /night
Check-in
02May2026Select date
Check-out
03May2026Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Hotel

Lassi, Argostoli (Kefalonia), Greece, 28100
-
Close to Makris Gialos Beach
Perfect
9.2
9.2
/10
4.8
4.5
/5

Rooms & Suites

Thalassa Boutique Hotel offers 70 stylish and spacious rooms ideal for couples, all accommodating up to two guests. The newly arrived Swim-Up rooms provide access to a private shared pool amidst lush Mediterranean gardens. Deluxe Suite options with spectacular sea views feature modern décor and premium amenities like a large walk-in shower.

Dining Experience

The Eolia Pool Lounge offers a diverse menu featuring local delicacies and traditional Greek cuisine made from ingredients sourced from the hotel's own organic farm. Alaia Lounge Bar serves specially crafted cocktails and light meals against the backdrop of breathtaking sea views. Breakfast is available until 11 am, allowing guests to enjoy delicacies such as homemade jams and fresh produce from the hotel's own farm.

Location

Thalassa Boutique Hotel is nestled above Paliostafida Beach, just 500 meters from the renowned Makris Gialos Beach. Located in Lassi, the hotel is a short drive from Argostoli, ensuring easy access to local attractions. The scenic coastal road leads guests towards various beautiful beaches and picturesque spots across the island.

Wellness and Relaxation

The hotel features two freshwater swimming pools surrounded by olive and pine trees, providing a relaxing environment for guests. A fully equipped gym enhances the wellness experience, allowing guests to maintain their fitness routines while enjoying garden views from the studio. The on-site massage room offers a selection of treatments tailored to rejuvenate and refresh.

Pet-Friendly Amenities

Thalassa Boutique Hotel welcomes pets, providing a friendly environment for guests traveling with their furry companions. The hotel's lush gardens create a safe and relaxing space for pets, ensuring enjoyable experiences for all visitors. Simba, the hotel's rescue puppy, adds charm and joy to the hotel atmosphere.

Highlights

Location: Above Paliostafida Beach, 500 m from Makris Gialos

Rooms: Deluxe Suites with sea views and spacious accommodations

Dining: Eolia Pool Lounge with homemade delicacies and cocktails

Wellness: Two freshwater swimming pools and a massage room

Pet-Friendly: Welcomes furry companions with charming garden spaces

Must-do experiences

  • Visit the stunning Melissani Cave for a magical boat tour.
  • Taste fresh seafood at the bustling Argostoli Waterfront.
  • Explore the Korgialenios Library for its unique architecture.
  • Discover the hidden charm of the nearby Skala Beach.
  • Sample local Robola wine at family-run wineries in the area.
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Select your room type

Thalassa Boutique Hotel - Adults Only offers a variety of rooms including double rooms, family rooms, and suites with breakfast, free cancelations, and special deals
Superior Double or Twin Room
2 persons
305 sq. feet 
1 Double bed
Heating
Balcony
Superior Double or Twin Room Garden View
2 persons
325 sq. feet 
1 Double bed
Heating
Balcony
Deluxe Double Room
2 persons
305 sq. feet 
1 Double bed
Heating
Balcony
Suite Sea View
2 persons
305 sq. feet 
1 Double bed
Heating
Balcony
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Facilities

Thalassa Boutique Hotel - Adults Only offers amenities for your comfortable stay and unforgettable experiences
Facilities: Perfect
9.4/10Review score

General

  • Non-smoking rooms
  • 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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Dining Onsite

At Thalassa Boutique Hotel, exquisite Mediterranean delights take center stage, inviting guests to indulge in authentic flavors against a backdrop of stunning sea views. Whether savoring breakfast or enjoying a refreshing drink, each dining experience promises a tasteful journey through local culinary traditions.
Thalassa Boutique Hotel - Adults Only Argostoli  Restaurant photo

Thalassa Restaurant

Mediterranean
Ambiance
Set against a scenic view of the sea, the restaurant's inviting atmosphere harmoniously blends with the hotel's tranquil surroundings.
Key Offerings
Guests can immerse themselves in a menu showcasing local delicacies, creative Greek cuisine featuring fresh seafood and meats, and a variety of Kefalonian cheeses and desserts. The Mediterranean breakfast is designed to invigorate mornings with its balanced selection.
Reservation
Reservations are not needed.
Open for lunch daily from 14:00 to 16:00.

Thalassa Boutique Hotel - Adults Only Location

Lassi, Argostoli (Kefalonia), Greece, 28100
Map view
Lassi, Argostoli (Kefalonia), Greece, 28100
Nearby
Strada del Faro di San Teodoro
Casa Rossa
1500 ft
Beach
Paliostafida beach
1100 ft
Paralia Makris Gialos
1700 ft
Restaurants
Tzogias Taverna
2400 ft
Lassi
Aqua Marina
1900 ft
not known
Zorbas Restaurant
2300 ft
Main Lassi Rd
Tanu's
2200 ft
Restaurant
Butler's House
2700 ft
Lassi Aerodromiou Argostoli
Da Veronica Bar
2400 ft
Nearby Veronica's Jewellery
Da Veronica
2600 ft
Restaurant
Taverna Sirtaki
3000 ft
Main Road
Nefeli Restaurant
3000 ft
Restaurant
Explore Argostoli (Kefalonia)
Local Highlights
Top Attractions
Activities
Dining
Entertainment
Makris Gialos Beach
Makris Gialos Beach
10 minutes' walk
Famous for its golden sands and turquoise waters, this beach offers sunbeds, umbrellas, and vibrant beach bars.
Casa Rossa
Casa Rossa
9 minutes' walk
A charming historic house, displaying local art and culture, ideal for a leisurely stroll and appreciation of Greek heritage.
Bridge De Bosset
10 minutes' drive
This historic bridge is perfect for scenic walks with stunning views, recognized as one of Greece's longest stone bridges.
Archaeological Museum of Argostoli
Archaeological Museum of Argostoli
5 minutes' drive
Features artifacts from Kefalonia's rich history. Ideal for history enthusiasts and offers free admission days.
Snorkeling
5 minutes' drive
Explore the underwater world of Kefalonia. Rentals and guided tours available at nearby beaches.
Hiking to St. Gerasimos Cave
12 minutes' walk
A relaxing hike to the serene cave hermitage. Ideal for those seeking tranquility and scenic views.
Tzogias Taverna
Tzogias Taverna
9 minutes' walk
Authentic Greek cuisine in a cozy atmosphere, famous for grilled octopus and moussaka.
Butler's House
Butler's House
10 minutes' walk
A modern restaurant with sea views and a menu featuring fresh seafood and local wines. Reservations recommended.
Argostoli Harbour
Argostoli Harbour
25 minutes' walk
A vibrant area with live music and street performances. Great for families and evening strolls.
Korgialenio Museum
5 minutes' drive
Hosts exhibitions, and cultural events, perfect for art lovers. Check the schedule for special events.
Getting around
City Centre
Argostoli (Kefalonia)24 min  ·  1.2 mi
Airports
Kefalonia (EFL)10 min  ·  3.9 mi
Dionysios Solomos (ZTH)185 min  ·  76.6 mi
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Property information and rules
Check-in
from 15:00-23:30
Check-out
from 01:00-11:00
Guest Parking
Private parking is possible on site for free.
Internet
Wireless internet is available in for free.
Breakfast
At the hotel Thalassa Boutique - Adults Only guests are invited to a full breakfast served for free. 
Children & extra beds
There are no extra beds provided in a room. 
Pets
Pets are allowed on request.
Year renovated:
2006
Number of rooms:
55
Former name
thalassa (adults only)

Reviews and Ratings

Feedback about Thalassa Boutique Hotel - Adults Only from previous guests about their experience.
Review score
Based on 313 verified reviews
9.2/10
Perfect
95%
Recommend
Breakfast
10.0/10
Cleanliness
9.6/10
Comfort
9.6/10
Facilities
9.4/10
Free Wi-Fi
9.3/10
Location
8.9/10
Paid Wi-Fi
10.0/10
Staff
9.5/10
Value for money
8.6/10
Guest reviews
based on 313 reviews
9.2/10
based on 670 reviews
4.5/5
based on 344 reviews
9.2/10
Molly from Ireland
Deluxe Double Room
3 nights in August 2025
|
Reviewed:October 21, 2025
6/10

Mixed Feelings About the Stay

slow hot wateruncomfortable pillows
I stayed a few nights, and some things were a disappointment. The hot water took a long time to arrive in the shower. I wasted time waiting. The pillows were uncomfortable to use at night, I did not sleep well because of that. It was a bit annoying.
0 Helpful
Molly from United Kingdom
Couple
Deluxe Double Room
5 nights in August 2025
|
Reviewed:September 25, 2025
9.5/10

A lovely Boutique Stay

serene atmospherecolorful bloomsgreat reliefvery nice kindness
I found such a serene atmosphere here. The gardens are abundant with colorful blooms. The swimming pools provided a great relief. I savored breakfast with so many options. The hotel gave easy access to beaches and town. The staff showed very nice kindness.
I did notice one minor thing, I found limited shade near the pool. I wish there could have been more umbrellas there.
Dining
9/10
Breakfast features many choices suitable for all tastes, like fresh fruits, pastries, and hot dishes, all freshly prepared and replenished frequently to ensure all guests find something to their liking. The restaurant provides delicious meals with attentive service.
Rooms
10/10
Our room was spacious and super clean, boasting modern decor and a balcony. The power shower offered a fantastic start to each day, and amenities included soft, high-quality towels and toiletries. The bed was comfortable, I experienced restful sleep.
Service
10/10
I found staff members genuinely cute and eager to assist. The team offered prompt responses to every request. The barman mixed delicious cocktails.
Facilities
9/10
The hotel features a lovely pool area with sun loungers and beach towels available. The hotel includes a cocktail bar providing a proper mixoligist. I did note the manager present and approachable, always checking on things.
0 Helpful
|
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Christian from Germany
Couple
Deluxe Double Room
4 nights in August 2025
|
Reviewed:August 31, 2025
9.5/10

Amazing Stay, Great Staff!

fresh pastriespool viewsclean hotel
I enjoyed the breakfast variety and fresh pastries every morning. The pool offers amazing views and many sunbeds. The restaurant and bar were fantastic.. It was a beautiful and clean hotel with great facilities.
Facilities
9/10
The pools are well-kept and the grounds are beautiful with colourful perennials in a natural style, so the landscaping is fine. The hotel offers a refreshing experience with superb dining options, so guests can unwind and enjoy a serene atmosphere.
Service
10/10
The team is attentive and warm, catering to every need. The staff provides really good service in the restaurant, bar, and during breakfast, so they ensure a cute and relaxed experience for all guests. They are always helpful.
0 Helpful
|
Show more
Questions of the users
About Thalassa Boutique Hotel - Adults Only
What should I do if I arrive late and check-in has already closed?
10 November 2024
Check-in is available 24/7, ensuring no need to worry about arriving late.
I need to have a video call during my stay. Is there reliable Wi-Fi available in the rooms?
15 December 2024
Complimentary Wi-Fi is provided in the rooms, perfect for video calls and browsing.
Can guests enjoy tea or coffee in their room? Also, are pool towels available?
22 January 2025
In-room tea and coffee making facilities are complimentary, and pool towels are provided for your convenience.
What size are the double beds in the rooms?
05 February 2025
Double beds are king-size, measuring 1.80m x 2.00m, providing ample space for rest.
Is it possible to add an extra bed for a small child in a double room?
12 March 2025
Extra bed requests can be accommodated. Please share the child's age for potential additional charges.
What makes Thalassa Boutique Hotel a great choice for a romantic getaway?
18 April 2025
The hotel features a serene, adults-only atmosphere, stunning sea views, and luxurious accommodations, perfect for couples.
How far is the nearest beach from the hotel?
25 May 2025
The beautiful Makris Gialos beach is just 500 meters away, offering easy access to sand and sea.
Are there fitness facilities available for guests at the hotel?
02 June 2025
A fully equipped fitness center is available for guests who wish to maintain their workout routine during their stay.
Is there a restaurant on the premises for meals throughout the day?
14 July 2025
The Eolia Pool Lounge provides a variety of delicious meals, from breakfast to light lunch, in a picturesque setting.
Can I book private transportation to the airport from the hotel?
20 August 2025
Complimentary private transfers to and from Kefalonia Airport are available for stays of 7 nights or longer.

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Rooms and Guests2 Guests, 1 Room