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Thalassa Boutique Hotel - Adults Only

Property class: 4
VIP Access

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Photo gallery for Thalassa Boutique Hotel - Adults Only

A modern outdoor seating area with a fire pit, sofas, and a view of a lake and mountains.
A bar area with a green tiled backsplash, wooden bar stools, and hanging wicker lamps.
A poolside area with multiple lounge chairs and a pool.
An aerial view of a beach with numerous round umbrellas and a building with a sloped roof.
A spacious living area with a large table, multiple chairs, and a view of the sea.

Reviews

9.2 out of 10
Wonderful

Popular amenities

  • Pet friendly
  • Parking included
  • Free WiFi

Explore the area

View in a map
Lassi, Paleostafida Beach, Kefalonia, Ionian Islands, 28100
  • Place, Makris Yalos Beach
    ‪8 min walk‬
  • Place, Gradakia Beach
    ‪14 min walk‬
  • Place, Kalamia Beach
    ‪4 min drive‬
  • Airport, Argostolion (EFL-Kefalonia Island Intl.)
    ‪12 min drive‬
VIP Access
Curated for quality and service, VIP Access stays consistently receive our highest guest ratings.
  • Expect exceptional service
  • Extra savings and perks for Rewards members
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Room options

View all photos for Superior Room, Garden View

A hotel room with a bed, two bedside tables, and a nightstand.

Superior Room, Garden View

10.0 out of 10
Exceptional
(1 review)
  • Garden view
  • 301 sq ft
  • Sleeps 2
  • 1 Double Bed OR 2 Twin Beds
  • Free WiFi

View all photos for Superior Room, Sea View

A bedroom with a large bed, a vanity with a mirror, and a window with curtains.

Superior Room, Sea View

8.8 out of 10
Excellent
(3 reviews)
  • Partial ocean view
  • 301 sq ft
  • Sleeps 2
  • 1 Double Bed OR 2 Twin Beds
  • Free WiFi

View all photos for Deluxe Double Room, Sea View

A modern hotel room with a large bed, a television, a small table, and a view of the sea.

Deluxe Double Room, Sea View

10.0 out of 10
Exceptional
(1 review)
  • Sea view
  • 301 sq ft
  • Sleeps 2
  • 1 Double Bed
  • Free WiFi

View all photos for Suite, Sea View

A bedroom with a large bed, a dresser, and a window with a view of the sea and mountains.

Suite, Sea View

9.4 out of 10
Exceptional
(3 reviews)
  • Sea view
  • 301 sq ft
  • Sleeps 2
  • 1 Double Bed
  • Free WiFi

View all photos for Room, Garden View (King)

A hotel room with a bed, a desk, a chair, a vase with flowers, and a book on the desk.

Room, Garden View (King)

10.0 out of 10
Exceptional
(2 reviews)
  • Garden view
  • 301 sq ft
  • 1 bedroom
  • Sleeps 2
  • 1 Double Bed
  • Free WiFi

View all photos for Design Double Swim-Up Room

A pool area with lounge chairs and a pergola.

Design Double Swim-Up Room

7.0 out of 10
Good
(2 reviews)
  • Garden view
  • 1 bedroom
  • Sleeps 2
  • 1 King Bed
  • Free WiFi

View all photos for Design Room, Partial Ocean View (King)

A hotel room with a bed, a desk, a chair, a mirror, and a lamp.

Design Room, Partial Ocean View (King)

  • Partial ocean view
  • 323 sq ft
  • 1 bedroom
  • Sleeps 2
  • 1 Double Bed
  • Free WiFi

View all photos for Executive Double Room

A modern hotel room with a large bed, a round mirror, a small desk, and a view of the outside.

Executive Double Room

  • 323 sq ft
  • 1 bedroom
  • Sleeps 2
  • 1 King Bed
  • Free WiFi

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About the neighborhood

Lassi

Makris Yalos Beach is a short stroll from Thalassa Boutique Hotel - Adults Only, and other popular attractions like Port of Argostoli are within a few miles (5 km). This 4-star hotel has 35 rooms and welcomes guests with free breakfast, free in-room WiFi, and free self parking.

What's nearby

  • Makris Yalos Beach - 8 min walk - 0.5 miles
  • Paliostafída - 12 min walk - 0.7 miles
  • Gradakia Beach - 14 min walk - 0.8 miles
  • Platýs Gialós - 17 min walk - 0.9 miles
  • Kalamia Beach - 4 min drive - 1.2 miles

Getting around

  • Argostolion (EFL-Kefalonia Island Intl.) - 14 min drive

Restaurants

  • ‪Baroque - Le Bistrot - ‬4 min drive
  • ‪Costa Costa - ‬12 min walk
  • ‪Spathis Bakery & Patisserie - ‬4 min drive
  • ‪Via Vallianou - ‬4 min drive
  • ‪De Bosset - ‬4 min drive

About this property

Thalassa Boutique Hotel - Adults Only

Thalassa Boutique Hotel - Adults Only features a gym, free WiFi in public areas, and meeting rooms. You can take advantage of free parking, along with an airport shuttle (available 24 hours) for EUR 25 per vehicle one-way. Front-desk staff can answer questions 24/7, and assist with securing valuables, dry cleaning/laundry, and tours or tickets. Other amenities at this adults-only hotel include a seasonal outdoor pool, a library, and a terrace.
Guests can expect free WiFi and flat-screen TVs. Bathrooms offer hair dryers and free toiletries. Furnished balconies or patios, electric kettles, and safes are also standard.
Recreational amenities at the hotel include a fitness center and a seasonal outdoor pool.

Awards and affiliations

No Boutique Certification - This property has not received an official certification as a Boutique Hotel under the Hellenic Chamber of Hotels' Boutique Hotel certification scheme.

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Property amenities

Internet

  • Available in all rooms: Free WiFi
  • Available in some public areas: Free WiFi

Parking and transportation

  • 24-hour roundtrip airport shuttle on request for a surcharge
  • Free self parking on site

Food and drink

  • Free buffet breakfast available daily 8:00 AM to 10:00 AM
  • A bar/lounge
  • A restaurant

Things to do

  • Gym
  • Library
  • Seasonal outdoor pool

Conveniences

  • 24-hour front desk
  • Safe at front desk

Guest services

  • Concierge services
  • Dry cleaning/laundry service
  • Housekeeping (daily)
  • Tour and ticket assistance

Business services

  • Meeting rooms

Outdoors

  • Garden
  • Pool loungers
  • Pool umbrellas
  • Terrace

Accessibility

  • No elevator

More

  • Smoking not allowed

Room amenities

Bedroom

  • Bedsheets provided

Bathroom

  • Bathtub or shower
  • Free toiletries
  • Hair dryer
  • Partially-open bathroom
  • Towels provided

Entertainment

  • Flat-screen TV

Food and drink

  • Electric kettle
  • Limited room service

More

  • Air conditioning
  • Desk
  • Safe
  • Soundproofed rooms

Policies

Check-in

Check-in start time: 3:00 PM; Check-in end time: midnight
Late check-in subject to availability
Minimum check-in age: 18

Check-out

Check-out before 11:00 AM

Special check-in instructions

This property offers transfers from the airport (surcharges may apply); guests must contact the property with arrival details before travel, using the contact information on the booking confirmation
Front desk staff will greet guests on arrival at the property
Information provided by the property may be translated using automated translation tools

Access methods

Staffed front desk

Pets

  • This property welcomes pets
  • Service animals exempt from fees

Children and extra beds

  • Children younger than 18 are not permitted to stay at this adults-only property (only guests 18 and older are allowed)

Property payment types

Important information

Fees

You'll be asked to pay these charges at the property:

  • A tax is imposed by the city and collected at the property. This tax is adjusted seasonally and might not apply year round. Other exemptions or reductions might apply. For more details, please contact the property using the information on the reservation confirmation received after booking.
  • A tax is imposed by the city: From 1 November - 31 March, EUR 3.00 per accommodation, per night
  • A tax is imposed by the city: From 1 April - 31 October, EUR 10.00 per accommodation, per night

These are all of the charges provided to us by the property.

Optional extras

These fees and deposits will be charged at check-in, check-out, or the time of service.

  • Airport shuttle fee: EUR 25 per vehicle (one-way)

This list may not be comprehensive. Fees and deposits might not include tax and are subject to change.

You need to know

Extra-person charges may apply and vary depending on property policy
Government-issued photo identification and a credit card, debit card, or cash deposit may be required at check-in for incidental charges
Special requests are subject to availability upon check-in and may incur additional charges; special requests cannot be guaranteed
This property accepts credit cards, debit cards, and cash
Cashless transactions are available
Safety features at this property include a fire extinguisher, a smoke detector, and a first aid kit
This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children; if you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room
  • Check-in: 3:00 PM—-midnight
  • Check-out: 11:00 AM
  • Minimum check-in age: 18
The front desk is open 24 hours a day. For convenient arrivals and departures, you can take advantage of the airport shuttle (available 24 hours), which is offered for a fee. Driving? This property offers free parking.
Property Registration Number 0430Κ032A0030901

We should mention

Details about charges, deposits, or other important information:

  • This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession.
  • This property has outdoor spaces, such as balconies, patios, terraces which may not be suitable for children. If you have concerns, we recommend contacting the property prior to your arrival to confirm they can accommodate you in a suitable room.
  • Charges for extra guests may apply and vary depending on the property's policy.
  • A cash deposit, credit card, or debit card for incidental charges, as well as a government-issued photo ID, may be required at check-in.
  • Special requests are subject to availability at the time of check-in and can't be guaranteed. Certain requests may come with additional charges.
  • This property accepts credit cards, debit cards, and cash.
  • Onsite safety features include a fire extinguisher, a smoke detector, and a first aid kit.
  • Cashless payment methods are available for all transactions.

Additional information about polices, regulations, and more:

  • Due to national regulations, cash transactions can't exceed EUR 500 at this property. For additional details, contact the property using the contact information on your booking confirmation.
  • The seasonal pool is open from April to October.
  • There are no elevators.
  • No rollaway or extra beds are available.

Property is also known as

Thalassa Argostoli
Thalassa Hotel
Thalassa Hotel Argostoli
Thalassa Hotel Lassi
Thalassa Lassi
Thalassa Hotel KEFALONIA
Thalassa KEFALONIA
Thalassa Boutique Hotel Kefalonia
Thalassa Boutique Kefalonia
Thalassa Boutique
Thalassa Boutique Hotel
Thalassa Adults Only Kefalonia
Thalassa Boutique Hotel - Adults Only Hotel
Thalassa Boutique Hotel - Adults Only Kefalonia
Thalassa Boutique Hotel - Adults Only Hotel Kefalonia

Frequently asked questions

Is free cancellation available at Thalassa Boutique Hotel - Adults Only?

Thalassa Boutique Hotel - Adults Only provides free cancellation on select room rates. To learn more, look at the cancellation policy on our site.

How much does it cost to stay at Thalassa Boutique Hotel - Adults Only?

As of Aug 22, 2026, prices found for a 1-night stay for 2 adults at Thalassa Boutique Hotel - Adults Only on Aug 25, 2026 start from $307, including taxes and fees. This price is based on the lowest nightly price found in the last 24 hours for stays in the next 30 days. Prices are subject to change. Choose your dates for more accurate prices.

What's there to see near Thalassa Boutique Hotel - Adults Only?

This hotel in Kefalonia is within a 10-minute walk of Ionian Sea and Makris Yalos Beach. You'll also find Platýs Gialós and Gradakia Beach less than a mile away.

Is there parking available at Thalassa Boutique Hotel - Adults Only?

Yes, self parking is offered for free at the hotel.

Does Thalassa Boutique Hotel - Adults Only include a casino on the premises?

No, Thalassa Boutique Hotel - Adults Only doesn't have a casino.

Will I find an indoor pool at Thalassa Boutique Hotel - Adults Only?

No, this hotel doesn't have an indoor pool; however, there is an outdoor pool. The seasonal pool is normally open from April until October.

What amenities will couples enjoy at Thalassa Boutique Hotel - Adults Only?

At this adults-only hotel, couples will appreciate amenities like a restaurant plus some guestrooms include a sea view and bathrobes.

Does Thalassa Boutique Hotel - Adults Only have a hot tub?

No, this hotel doesn't have a spa tub.

Does Thalassa Boutique Hotel - Adults Only have a restaurant with a breakfast menu?

Yes, Thalassa Boutique Hotel - Adults Only serves free buffet breakfast each morning from its restaurant.

Will Thalassa Boutique Hotel - Adults Only allow pets to stay for free?

Although pets can't stay for free, they are welcome at Thalassa Boutique Hotel - Adults Only.

Does Thalassa Boutique Hotel - Adults Only have connecting rooms available?

No, this hotel doesn't feature connecting guestrooms.

How far is the airport from Thalassa Boutique Hotel - Adults Only?

The closest major airport to Thalassa Boutique Hotel - Adults Only is Argostolion (EFL-Kefalonia Island Intl.), which is 3.9 mi away (14 minutes by car).

Are there rooms with balconies at Thalassa Boutique Hotel - Adults Only?

Yes, every guestroom at Thalassa Boutique Hotel - Adults Only comes with a furnished balcony/patio and some offer sea and garden views.

Thalassa Boutique Hotel - Adults Only Reviews

Reviews

9.2

Wonderful

Rating 10 - Excellent. 82 out of 117 reviews
Rating 8 - Good. 28 out of 117 reviews
Rating 6 - Okay. 2 out of 117 reviews
Rating 4 - Poor. 1 out of 117 reviews
Rating 2 - Terrible. 4 out of 117 reviews

9.6/10

Cleanliness

9.4/10

Staff & service

9.2/10

Amenities

9.2/10

Property conditions & facilities

Reviews

Verified review

10/10 Excellent

Gary

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Our second stay at this hotel and just as fabulous as the first. The views, the staff, the food, the rooms and pool area are faultless. Wonderful, relaxing holiday.
Stayed 7 nights in May 2026
Verified review

10/10 Excellent

Stephen

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful adults only hotel and nice breakfast
Stayed 6 nights in Aug 2025
Verified review

10/10 Excellent

Niloufar

Liked: Cleanliness, staff & service, property conditions & facilities
The staff were welcoming and made our stay very enjoyable- would recommend the hotel throughly and hope to return!
Stayed 7 nights in Sep 2025
Verified review

10/10 Excellent

Sonia

Liked: Cleanliness, amenities, property conditions & facilities
Staff were amazing especially at breakfast. Breakfast was superb with lots of variety. Great location
Stayed 7 nights in Oct 2025
Verified review

10/10 Excellent

Michelle

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Absolutely fantastic adults-only hotel! From the moment we arrived, everything was perfect. The peaceful atmosphere made it the ideal place to relax and unwind. The staff were incredibly friendly, attentive, and always willing to help. The rooms were spotless, spacious, and beautifully presented and loved the fact that they had smart tvs in the rooms, so we could watch Netflix and Amazon prime on an evening and when getting ready in the morning, every detail was thought of. The food and facilities were excellent, and it was so refreshing to enjoy a calm, child-free environment. A truly relaxing and luxurious stay – we left feeling completely recharged and can’t wait to return. Highly recommended!”
Stayed 8 nights in May 2026
Verified review

10/10 Excellent

Alan

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Nice quality hotel. Breakfast was lovely the room was very good indeed.
Stayed 2 nights in Sep 2025
Verified review

10/10 Excellent

Oliver

Liked: Cleanliness, amenities, property conditions & facilities
Perfect stay
Stayed 4 nights in Oct 2022
Verified review

10/10 Excellent

Paige

Liked: Cleanliness, amenities, property conditions & facilities
Beautiful hotel in a great location. The pool was gorgeous and I had an amazing view of the ocean from my room. The hotel staff were also top tier.
Stayed 3 nights in May 2025
Verified review

10/10 Excellent

Karmin

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort

Great stay!

This hotel was one of our favorite hotels we have stayed at in some time. Very friendly staff and the food here is amazing. They have live music some nights which was also so fun. Very comfortable spacious room with so much closet space. I would definitely come back here.
Stayed 4 nights in Aug 2025
Verified review

10/10 Excellent

Francine

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful property. Hotel staff was very kind and welcoming. We would stay here again.
Stayed 4 nights in Sep 2024
Verified review

10/10 Excellent

Muriel

Liked: Cleanliness, staff & service, property conditions & facilities
Charming and efficient
Stayed 14 nights in Sep 2025
Verified review

10/10 Excellent

ZHANG

Liked: Cleanliness, staff & service, property conditions & facilities
Perfect location and nice setup with pool and bar. Like the sea view room.
Stayed 2 nights in Jul 2022
Verified review

8/10 Good

Houssam

Liked: Cleanliness, staff & service, property conditions & facilities
Wonderful
Stayed 1 night in Aug 2025
Verified review

10/10 Excellent

Mary

Liked: Cleanliness, staff & service, property conditions & facilities
The property was lovely. Our room was fabulous with a sea view and breakfast everyday was amazing with beautiful views of the ocean.
Stayed 6 nights in Jul 2024
Verified review

10/10 Excellent

Robert

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
For us what stood out were the staff, the quality of our room and food. This hotel is perfectly located if you want quiet but dont mind a 5 min walk to the beach or the town. The taxi services are great for further afield areas. Would we come back. Definitely.
Stayed 7 nights in Oct 2025
Verified review

10/10 Excellent

Nicholas

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Great place to relax in comfort. Staff are excellent and great beaches nearby. Couldn’t fault it and will be returning.
Stayed 7 nights in May 2024
Verified review

10/10 Excellent

Steven

Liked: Staff & service, amenities, property conditions & facilities
Great hotel. Fantastic staff. Breakfast great. Wonderful Pool. Don't let the building work at the front put you off. You can't hear any noise at all.
Stayed 3 nights in May 2025
Verified review

10/10 Excellent

Callum Elliott

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Quiet, tranquil hotel with attentive and friendly staff. Beautiful room overlooking the Ionian Sea on an island which felt very safe. Highly recommended.
Stayed 7 nights in Aug 2024
Verified review

10/10 Excellent

VALERIA

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The hotel is really nice ! Excellent staff! Excellent breakfast and very beautiful room. I think I didn’t receive an upgrade because nobody told me so, but the room I had booked was really nice ! Very happy with our stay
Stayed 2 nights in Jun 2024
Verified review

10/10 Excellent

rita

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Beautiful gardens and swimming pools beaches nearby. Plenty of restaurants to eat out. Easy access to airport. Friendly staff always happy to assist. Highly recommended.
Stayed 7 nights in Oct 2023
Verified review

8/10 Good

Sharon

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
The staff are really lovely and helpful. The hotel was clean and the pool area and restaurant were fantastic. Short walk from a few really beautiful beaches and walking distance to many restaurants in Lassi. The hotel restaurant served excellent food and drinks and the view of the sea from the hotel is amazing. While the furniture in the room was dated, it had everything I needed and was large. I especially enjoyed having a sea view and my own seating area outside. I really enjoyed my stay and hope to return some day.
Stayed 5 nights in Aug 2025
Verified review

10/10 Excellent

Richard

Liked: Cleanliness, amenities, property conditions & facilities
What an amazing hotel. Lovely rooms that are meticulously cleaned each day and given the turn-down service at night. Fantastic food, not only the sumptuous breakfast buffet that's included, but also the lunches and dinners a la carte - all served by friendly, smiling staff. Oh and then a cocktail bar with a glorious view to start or end the night. Cannot fault it.
Stayed 8 nights in May 2025
Verified review

10/10 Excellent

Phoebe

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
We stayed here for 5 nights in July and it was amazing! The hotel is beautiful, the images online do not do it justice. It is quiet, and even in peak season was not super busy. The staff are lovely, and food and drinks are amazing. We were upgraded which was a suprise and the swim up rooms were incredible. We will definitely be staying here again! Thank you!
Stayed 5 nights in Jul 2024
Verified review

10/10 Excellent

Mitchell

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Thalassa Boutique was the perfect resort for our stay in Kafalonia. The only amenity that would have been helpful would have been an ATM machine. A small gum would have been nice too. Overall hour 9 night, 10 day was superb.
Stayed 9 nights in Aug 2025
Verified review

8/10 Good

Ian

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Well laid out property, staff very good, bar, dinner breakfast all very good. A few technical issues in the room which were resolved.
Stayed 7 nights in Oct 2023