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

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From178US$ /night
Check-in
10Dec2025Select date
Check-out
11Dec2025Select 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
9.1
/10
4.3
/5

Rooms

Thalassa Boutique Hotel offers 70 luxury rooms and suites, scattered across six buildings with unobstructed sea or garden views. The newly arrived Deluxe Swim-Up rooms provide a unique escape with shared pool access, while the White Suite features panoramic sea views from the top floor. Each accommodation is equipped with high-quality furnishings, and the elegant decor enhances the serene atmosphere.

Location

Located just 500 meters from Makris Gialos beach, Thalassa Boutique Hotel overlooks the Paliostafida bay in Lassi. The hotel's strategic positioning gives guests convenient access to Argostoli, only a 10-minute drive away. This combination of seclusion and accessibility allows for easy exploration of Kefalonia's beaches and local attractions.

Dining

Eolia Pool Lounge serves Mediterranean dishes using organic ingredients from the hotel's own farm, creating a unique dining experience. Guests can enjoy homemade delicacies and traditional Greek meals at breakfast, extending until 11 AM for late risers. The Alaia Lounge Bar offers refreshing cocktails and drinks against a backdrop of stunning sunset views over the Ionian Sea.

Wellness

The hotel features a fully equipped fitness center with Technogym instruments, allowing guests to maintain their workout routines during their stay. Additionally, a massage room offers rejuvenating treatments to enhance relaxation after a day of exploration. The two freshwater swimming pools are surrounded by olive and pine trees, providing a refreshing spot for leisure.

Pet-Friendly

Thalassa Boutique Hotel welcomes pets, making it a suitable choice for guests traveling with their furry companions. The hotel features a lush garden where pets can enjoy the outdoors. Simba, the hotel's rescue puppy, adds to the inviting atmosphere for pet lovers staying at the hotel.

Highlights

Location: 500 meters from Makris Gialos beach

Rooms: 70 luxury rooms and suites

Dining: Eolia Pool Lounge with organic meals

Wellness: Fully equipped fitness center

Pet-Friendly: Welcome for furry companions

Ambiance: Panoramic sea views from the White Suite

Must-do experiences

  • Stroll through the charming streets of Argostoli's vibrant square.
  • Savor fresh seafood at the waterfront Taverna O Vasilis.
  • Visit the Korgialenios Historical and Folklore Museum for culture.
  • Take an evening walk at the De Bosset Bridge for stunning sunsets.
  • Explore the local market for authentic Kefalonian delicacies.
View all

Select your room type

Choose from doubles, suites, or family rooms, many with breakfast, flexible cancellation, and promotional rates
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
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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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Dining Onsite

Thalassa Boutique Hotel - Adults Only offers a delightful culinary experience with a focus on Mediterranean flavors. Guests can immerse themselves in the local cuisine while enjoying stunning sea views and a relaxed atmosphere, ensuring every meal is a celebration of taste and culture.
Thalassa Boutique Hotel - Adults Only Argostoli  Restaurant photo

Thalassa Restaurant

Mediterranean
Ambiance
Nestled within the hotel, Thalassa Restaurant offers serene views of the sea, providing a relaxed setting that harmoniously blends with the tranquil environment of the hotel.
Key Offerings
Savor local delicacies, creative Greek dishes featuring fresh meat and fish, Kefalonian cheeses, and freshly made desserts. Each bite tells a story of the region's rich culinary heritage, making for an indulgent afternoon.
Reservation
Not needed
Open for lunch from 14:00 to 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)
Activities Near Thalassa Boutique Hotel
Top Attractions
Activities
Dining
Entertainment
Makris Gialos Beach
Makris Gialos Beach
10 minutes' walk
A stunning beach known for its soft sand and clear blue waters, perfect for sunbathing and swimming.
Casa Rossa
Casa Rossa
9 minutes' walk
This iconic red villa showcases Italian architecture and offers a glimpse into the area's history.
Argostoli Harbour
Argostoli Harbour
25 minutes' walk
A picturesque waterfront with restaurants and shops, ideal for leisurely strolls especially during sunset.
Bridge De Bosset and its Monument
Bridge De Bosset and its Monument
10 minutes' drive
The longest stone bridge in Europe features stunning views and is rich in cultural history and local lore.
Snorkeling at Platis Gialos Beach
16 minutes' walk
Experience vibrant marine life with local snorkeling rentals available for all skill levels.
Yoga by the Beach
12 minutes' walk
Relaxing yoga sessions offered at nearby beaches, perfect for guests seeking tranquility and wellness.
Hiking in Mount Ainos
30 minutes' drive
Thrilling hikes with stunning panoramic views await at this national park, ideal for adventure enthusiasts.
Tzogias Taverna
Tzogias Taverna
9 minutes' walk
Traditional Greek dishes served in a cozy setting; try the moussaka and enjoy local wines.
Butler's House
Butler's House
10 minutes' walk
A charming spot offering a mix of Mediterranean and international cuisine with lovely outdoor seating.
Aqua Marina
Aqua Marina
7 minutes' walk
Fresh seafood and casual ambiance; the grilled octopus is a must-try here.
Lassi Beachside Bars
12 minutes' walk
Vibrant bars with live music and beach vibes, perfect for enjoying cocktails during sunsets.
Cine Luxor Argostoli
10 minutes' drive
A charming outdoor cinema offering evening screenings of both classic and recent films under the stars.
Getting around
City Centre
Argostoli (Kefalonia)24 min  ·  2.0 km
Airports
Kefalonia (EFL)10 min  ·  6.2 km
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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
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 available from 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 just 300 meters from Makris Gialos beach.
Is parking available at Thalassa Boutique Hotel - Adults Only?
Free private parking is available on-site, and no reservation is needed.
What dining options are available at Thalassa Boutique Hotel - Adults Only?
The hotel has an on-site restaurant serving Mediterranean cuisine and an Alaia Lounge Bar for drinks and light meals.
What room amenities can guests expect at Thalassa Boutique Hotel - Adults Only?
Rooms are equipped with air conditioning, a TV with satellite channels, a safety deposit box, and tea/coffee-making facilities.
What is the distance from Thalassa Boutique Hotel - Adults Only to Kefalonia Airport?
The hotel is approximately 10 km away from Kefalonia Airport.
How far is Thalassa Boutique Hotel - Adults Only from Argostoli city center?
The hotel is located 1 km from the center of Argostoli.
What types of breakfast are offered at Thalassa Boutique Hotel - Adults Only?
The hotel serves a rich breakfast featuring homemade delicacies and traditional Greek flavors.
Can guests access free Wi-Fi at Thalassa Boutique Hotel - Adults Only?
Yes, free Wi-Fi is available throughout the hotel.

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