Pay on our site
up to 10% less
than on Booking.com
Check rooms and rates
From178US$ /night
Check-in
09Dec2025Select date
Check-out
10Dec2025Select date
Rooms and Guests2 Guests, 1 Room
Key details

About the Hotel

Lassi, Argostoli (Kefalonia), Greece, 28100
-
Steps from Makris Gialos Beach
Perfect
9.2
9.1
/10
4.3
/5

Located a 10-minute stroll from the Bustling Makris Gialos Sandy Beach, the 4-star Thalassa Boutique Hotel - Adults Only Argostoli includes 55 rooms with views of the sea. The hotel lies in proximity to the Gradakia beach, and offers an à la carte restaurant and a lovely swimming pool onsite.

Location

This opulent hotel is situated 1.3 km from a sand beach. The Catholic Church of St. Nicholas is not far from the Thalassa, while Lassi bus stop is 10 minutes' walk away.

Also, the property is circled by many bars and restaurants.

For those travelling from afar, Kefalonia airport is 8 minutes' drive away.

Rooms

Some of the rooms boast views of the Ionian Sea, include an adjoining terrace and a private furnished balcony and offer a flat screen TV for guests' enjoyment. They are decorated with elegant furniture. Providing a separate toilet, the bathrooms are also equipped with hairdryers.

Eat & Drink

Mediterranean cuisine is teamed with excellent service for fine dining in Thalassa restaurant. This comfortable hotel features a lounge bar for guests to enjoy light drinks. It comprises a lounge furnished with chairs.

Leisure & Business

The smoke-free property offers sunloungers and umbrellas on a gorgeous beach, which is 1.3 km away. Thalassa Boutique Hotel - Adults Only has a fitness centre.

Must-do experiences

  • Visit the mesmerizing Melissani Cave for a magical boat ride.
  • Taste fresh seafood at Psaraki, a local favorite by the water.
  • Take a sunset stroll at the picturesque Katavothres Beach.
  • Discover the history at the Archaeological Museum of Argostoli.
  • Explore the local market at Koutavos Lagoon for unique souvenirs.
View all

Select your room type

The hotel 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
28 m² 
1 Double bed
Heating
Balcony
Superior Double or Twin Room Garden View
2 persons
30 m² 
1 Double bed
Garden view
Heating
Balcony
Deluxe Double Room
2 persons
28 m² 
1 Double bed
Heating
Balcony
Suite Sea View
2 persons
28 m² 
1 Double bed
Sea view
Heating
Balcony
Click button to see more rooms
Show all rooms
Show all roomsLess

Price and Room Availability Calendar

Check availability and prices for your dates now!

Facilities

The hotel offers amenities for your comfortable stay and unforgettable experiences

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
Show more

Dining Onsite

At Thalassa Boutique Hotel, guests find a delightful culinary escape centered around authentic Mediterranean flavors. Featuring a relaxed atmosphere and breathtaking views, the dining options offer a perfect harmony of indulgence and local charm, promising a rejuvenating experience.
Thalassa Boutique Hotel - Adults Only Argostoli  Restaurant photo

Thalassa Restaurant

Mediterranean
Ambiance
Nestled within the serene surroundings of the hotel, the Thalassa Restaurant features a cozy dining room with stunning sea views, perfect for enjoying leisurely lunches.
Key Offerings
Highlights include an eclectic breakfast menu loaded with local delicacies, freshly squeezed juices, aromatic coffee, and an array of creatively prepared dishes featuring fish and meat, alongside delightful desserts.
Reservation
Not needed
Open for lunch from 14:00 - 16:00 daily.

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
Explore Argostoli (Kefalonia)
Local Experiences
Top Attractions
Activities
Dining
Entertainment
Makris Gialos Beach
Makris Gialos Beach
10 minutes' walk
Famous for its golden sands and turquoise waters, perfect for sunbathing and water sports.
Casa Rossa
Casa Rossa
9 minutes' walk
A charming villa turned museum showcasing local history with insightful exhibits and beautiful gardens.
Argostoli Harbour
Argostoli Harbour
25 minutes' walk
Bustling harbor area offering stunning sunset views, cafes, and local shops nearby.
Cave-Hermitage St. Gerasimos
12 minutes' walk
A serene retreat featuring beautiful caves and peaceful surroundings, ideal for a quiet visit.
Snorkeling at Makris Gialos
10 minutes' walk
Rental services available for equipment; vibrant marine life awaits adventurous guests.
Yoga on the Beach
10 minutes' walk
Join local classes for relaxation and mindfulness with stunning ocean views.
Zorbas Restaurant
Zorbas Restaurant
9 minutes' walk
Traditional Greek cuisine in a cozy setting; try the moussaka and fresh seafood specialties.
Aqua Marina
Aqua Marina
7 minutes' walk
Casual dining with delicious Mediterranean dishes; known for its fresh ingredients and friendly service.
Tzogias Taverna
Tzogias Taverna
9 minutes' walk
Authentic taverna vibe with hearty local meals; perfect for a casual family dinner.
Kefalonia Cinema
10 minutes' drive
Local cinema featuring recent films and occasional themed nights; a great way to unwind.
Live Music at Argostoli
25 minutes' walk
Enjoy vibrant local music performances at various venues; often features traditional Greek music.
Getting around
City Centre
Argostoli (Kefalonia)24 min  ·  2.0 km
Airports
Kefalonia (EFL)10 min  ·  6.2 km
Interested in Exclusive Early Booking Rates?
Take advantage of special rates!
Check Rates
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
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)
FAQs
About Thalassa Boutique Hotel - Adults Only
What is the check-in and check-out policy at Thalassa Boutique Hotel - Adults Only?
Check-in is at 15:00 and check-out is by 11:00.
How far is Thalassa Boutique Hotel - Adults Only from the nearest beach?
The hotel is located 300 meters from the sandy beach of Makris Gialos.
What dining options are available at Thalassa Boutique Hotel - Adults Only?
The hotel features an on-site restaurant serving Mediterranean cuisine and a bar offering drinks and light meals.
Is parking available at Thalassa Boutique Hotel - Adults Only?
Free private parking is available on-site without the need for a reservation.
What recreational facilities does Thalassa Boutique Hotel - Adults Only offer?
The hotel features two seasonal outdoor swimming pools surrounded by lush Mediterranean gardens.
What amenities are included in the rooms at Thalassa Boutique Hotel - Adults Only?
Rooms are equipped with air conditioning, a TV with satellite channels, a safety deposit box, and tea-and-coffee-making facilities.
What is the approximate distance from Thalassa Boutique Hotel - Adults Only to Argostoli?
The hotel is 1 km from Argostoli Harbour.
Does Thalassa Boutique Hotel - Adults Only have a fitness center?
The hotel offers a fully equipped fitness center for guests.
How can I get to the airport from Thalassa Boutique Hotel - Adults Only?
The hotel provides a free airport shuttle service, with options for paid airport pick-up and drop-off.
What types of rooms are available at Thalassa Boutique Hotel - Adults Only?
Room options include Deluxe Suites, Premium Double Sea View, Sea View Suites, and Swim-Up rooms.
Does Thalassa Boutique Hotel - Adults Only offer a bar?
Yes, there is an on-site bar, the Alaia Lounge Bar, providing a stylish setting for evening gatherings.

Next best alternative

Consider them for your next trip.
Check-in
09Dec2025Select date
Check-out
10Dec2025Select date
Rooms and Guests2 Guests, 1 Room

Want to save 15%?

Unlock mobile deal now
Book your stay with special mobile rate on and save up to 15%.
Thalassa Boutique Hotel - Adults Only Argostoli  Exterior photo

Thalassa Boutique Hotel - Adults Only

9.2
Perfect343 reviews
2.0 km from center
160 US$
178 US$
per night
Mobile-only price