Thalassa Boutique Hotel - Adults Only
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Thalassa Boutique Hotel - Adults Only

Experience Thalassa Boutique Hotel - Adults Only, a 4-star hotel in Argostolion. Highly rated at 9.1/10 from 78 guests, it delivers exceptional comfort at a great value, with rates from $281.

Rooms

Superior Room with Garden View

Deluxe Garden Swim up Room (Shared Pool)

Deluxe Suite

Check-In & Check-Out

From 15:00 until 11:00

Nearby Attractions

Kefalonia Diving Center: 0.45 km away

Pirate Divers Club: 0.35 km away

Paliostafida Beach: 0.17 km away

Hotel Features

For Your Relaxation: Pool, Beauty and makeup, and Gym

Dining & Drinks: Room service, Restaurant, Bar

Thalassa Boutique Hotel - Adults Only

No. 19 of 4-Star Select Hotels in Ionian Islands
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We Price Match
Highlights
Pool bar
Ocean views
Delicious breakfast
Lounge
Ideal location
+5 more
Amenities
All amenities
Property Description
Show more
Cleanliness9.1
Amenities9.1
Location9.1
Service9.1
Surroundings
Airport: Kefalonia International Airport
(3.9 miles)
Landmarks: Paliostafida Beach
(550 ft)
Landmarks: Kefalonia Diving Center
(1450 ft)
Landmarks: Tennis Club Argostoli
(1550 ft)
Landmarks: Makris Gialos Beach
(1750 ft)
Landmarks: Gradakia Beach
(2550 ft)
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7

Design Room, Partial Ocean View (King)

1 Double bed
Free Wi-Fi
Non-smoking
Private bathroom
Daily housekeeping
Wi-Fi in room
Room Details
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8

Superior Room With Garden View

2 Single bed or 1 Double bed
Free Wi-Fi
Non-smoking
Air conditioning
Private bathroom
TV
Towels
Room Details
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36

Deluxe Double Room with Sea View

1 Double bed
Free Wi-Fi
Non-smoking
Air conditioning
Private bathroom
TV
Ocean view
Room Details
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4

Superior Room With Sea View

2 Single bed or 1 Double bed
Free Wi-Fi
Non-smoking
Air conditioning
Private bathroom
TV
Towels
Room Details
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13

King Room with Garden View

1 Double bed
Free Wi-Fi
Non-smoking
Air conditioning
Private bathroom
Towels
Daily housekeeping
Room Details
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10

Design Double Swim-up Room

1 King bed
Free Wi-Fi
Non-smoking
Private bathroom
Daily housekeeping
Wi-Fi in room
Room Details
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39

Suite with Sea View

1 Double bed
Free Wi-Fi
Non-smoking
Air conditioning
Private bathroom
TV
Ocean view
Room Details
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7

Executive Double Room

1 King bed
Free Wi-Fi
Non-smoking
Air conditioning
Private bathroom
TV
Towels
Room Details
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Average for similar properties in Argostolion
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
October 22, 2023
Beautiful hotel in a very scenic location. The facilities are excellent and so was the breakfast. Very friendly staff as well.
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
June 8, 2026
We are staying here for 10 days and will leave a separate review for the hotel but had to leave a review for their restaurant. We ate there tonight and while it may be a little more expensive than places on the main strip the food speaks for itself. Amazing service and outstanding quality. The surf & turf with veal and lobster was the best we have had. Desserts were also outstanding. Hats off to the chef! Beautiful setting & amazing food. 10 out of 10.
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
June 7, 2026
Pure luxury ! We booked a swim-up room which was definitely worth the extra cost. It was a pleasure coming back to our suite each day - so spacious and well-equipped. We only had breakfast at the hotel and it was spot on. The staff became friends, they were all so helpful, kind and happy ! All very good at their jobs too. The location of the hotel is perfect, probably 20 minutes transfer from the airport, 5/10 minutes walking distance to 3 beautiful beaches. Local tavernas and small shops provided everything that we required. This hotel is definitely one that we will return to.
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
June 3, 2026
It is a lovely hotel in beautiful surroundings. All the staff are very professional, polite and cant do enough for you. Would highly recommend. We will definitely be coming back.
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
June 2, 2026
Thalassa boutique hotel is an adults only resort that is peaceful, welcoming and relaxing. The food here is outstanding thanks to the excellent chef. In fact, it's the best food we've had in a hotel. We stayed full board and it was well worth the money. The staff here are wonderful. They are so welcoming and friendly. Again, the best we have experienced. The restaurant staff are amazing, especially Marie Helen and the breakfast staff who help you to start your day with a smile. Everyone has a kindly word and is efficient in their role including the people who clean your room. The island of Kefalonia is lush with gorgeous beaches but there is plenty to do if you are not a beach fan. One of the best holidays we have ever had. Thank you, Thalassa Boutique staff.
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
May 15, 2026
We have just returned from a wonderful week at Thalassa Boutique Hotel. We needed a well earned and relaxing break after having spend the last 18 months renovating our recently bought house and this is exactly what we got. From the moment we arrived we felt welcomed and relaxed, I always think the initial impression you get from a hotel is important and sets the scene for the entire break. The lady that greeted us at reception was lovely and very welcoming and provided all the information we needed on our planned days out and car hire. Our room (104) was perfect, lovely big walk in shower and huge bed, we slept very well and our room was extremely comfortable. We did upgrade from B&B to half board as we thought it was a bit of a walk to any other restaurants, in reality it probably is not that far but we wanted a totally relaxing week, and OMG the food quality here is sensational and plenty of menu choice, the BBQ on the Tuesday evening is a must, but the salads, moussaka, beef flank and the lamb dishes in particular were amazing, with out a doubt the best food we have ever had in a hotel and we have been to a lot of hotels across many of the Greek islands. The staff are wonderful and we particularly thought the young lady from Athens who served us regularly was very nice and professional and also the chap behind the bar also, but everyone went above and beyond to make our stay memorable. Also the cocktails are fabulous and very strong, all freshly made and not the pre mixed stuff you sometimes get at other hotels. They will even make you something you ask for if not in the cocktail menu. The pool area in the daytime is extremely relaxing and just simply idilic, there is nobody playing loud music or anything like that and it is extremely refreshing that the designated smoking areas are away from the sunbeds, all the sunbeds though are well spaced apart and there is no mad rush reserving sunbeds as it is not at all necessary. We also thought that the multi stem olive trees all around the pool area instead of the usual palm trees were just lovely and stunning and just added to the overall pool ambience. This is a relatively small (70 or so rooms) boutique hotel and there is an enormous new hotel being built opposite this one, apparently the same owners. Our taxi driver told us that there is going to be an underpass between the two hotels so I would really hope that Thalassa retains its personal, calm and small feel. The hotel also advertises itself on its website as being pet friendly, I did find it really quite odd that there was a couple at the hotel with their dog especially as there are resident cats here that are fed by the hotel staff and it is effectively their home!! We did experience this dog going for one of the cats and the owners just laughed, I did not like this at all. The hotel as I’ve said does have a lot of cats, not at all a problem for us as we love cats, and we liked to treat them to scraps of bacon in the morning, but the od
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
May 10, 2026
We have just returned from an absolutely perfect stay in this beautiful hotel. From start to finish our stay was so relaxing and just perfect! You can have the most amazing hotel in terms of quality of rooms and location. However, if you don’t have a Team running that hotel who are passionate about customer service, warm, friendly and welcoming, then you only have is bricks and mortar! The Thalassa Team are all of the above and more. Our swim up room was extremely comfortable, elegantly decorated and spotlessly clean. The overall ambiance of the hotel was one of peacefulness, and relaxation. The food was divine with breakfast being a culinary experience of sweet and savoury foods. We also ate lunch and dinner several times, and could not fault the food in any way. Compliments to the Restaurant Team! The location was excellent in terms of sea views, and only a short drive into the capital Agrostoli. Kefalonia is a beautiful unspoilt island, and we throughly enjoyed exploring it. Many thanks to Team Thalassa for an unforgettable stay!
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
October 19, 2025
As I sit here listening to the staff unobtrusively close down the hotel for the season, I can hear a cockerel in the distance, birds twittering and looking out to the serene blue Ionian sea. This hotel is what dreams are made of, I have been a travel agent for 32 years and I have never found such good service in any European country, the staff (even this late in the season) could not do enough for us. The rooms, facilities are second to none, location for restaurants and beach access perfect. If you are looking for a romantic break or fun with friends - do come you won’t regret it. Thank you so much to all the staff for a lovely break.
G‍u‍e‍s‍t‍ ‍U‍s‍e‍r
October 16, 2025
We had a great time at this hotel, nothing was too much trouble for the staff, the hotel itself is fantastic, lovely surroundings , great breakfast with plenty of options , bars and restaurants less than a 10 min walk away, would highly recommend this hotel

Services & Amenities

Restaurant
No additional info available

Property Policies

Check-in and Check-out Times
Check-in: 15:00–23:30
Check-out: 01:00–11:00

Front desk hours: 24/7

Child policies
Children are not permitted to stay at this property

Cribs and Extra Beds
For all room types, extra beds cannot be added. Crib policies vary according to room type. Please refer to the relevant room type policy.

Breakfast
StyleBuffet
Opening hours[Mon - Sun] 08:00-10:00 Open
AgeFee
Adult
Free
Additional breakfast fees are not included in the total and need to be paid at the property.

Pets
Pets are allowed on requestAdditional charge
Fee: Contact the property for details

Service animals
Service animals are allowed on request

Age Requirements
The main guest checking in must be at least 18 years old

Paying at the hotel

  • Cash

Property Description

Local hotel name: Thalassa Boutique Hotel - Adults Only
  • Opened: 2004
  • Number of Rooms: 35
Phone:+30-2671-027081
When you stay at Thalassa Boutique Hotel - Adults Only in Kefalonia, you'll be near the beach, within a 5-minute drive of Makris Yalos Beach and Port of Argostoli. This hotel is 2.8 mi (4.5 km) from Fanari Beach and 4.6 mi (7.4 km) from Ammes Beach.
Take advantage of recreation opportunities including a fitness center and a seasonal outdoor pool. Additional features at this hotel include complimentary wireless internet access and concierge services.
Enjoy a meal at the restaurant, or stay in and take advantage of the hotel's room service (during limited hours). Wrap up your day with a drink at the bar/lounge. A complimentary buffet breakfast is served daily from 8:00 AM to 10:00 AM.
Featured amenities include dry cleaning/laundry services, a 24-hour front desk, and a library. A roundtrip airport shuttle is provided for a surcharge (available 24 hours), and free self parking is available onsite.
Make yourself at home in one of the 35 air-conditioned rooms featuring flat-screen televisions. Rooms have private furnished balconies or patios. Complimentary wireless internet access is available to keep you connected. Partially open bathrooms with bathtubs or showers feature complimentary toiletries and hair dryers.

You might be wondering

What landmarks are near Thalassa Boutique Hotel - Adults Only?

Nearby attractions to Thalassa Boutique Hotel - Adults Only include Paliostafida Beach, just 550 ft from your search (straight-line distance) away.

What amenities and services does Thalassa Boutique Hotel - Adults Only offer?

Popular amenities and services at Thalassa Boutique Hotel - Adults Only include: Shuttle service.

Does Thalassa Boutique Hotel - Adults Only have a pool?

Yes, Thalassa Boutique Hotel - Adults Only has a swimming pool for guests.

Where is Thalassa Boutique Hotel - Adults Only located?

The hotel is located at Lassi.

Does Thalassa Boutique Hotel - Adults Only offer airport transfer services?

No, Thalassa Boutique Hotel - Adults Only doesn’t provide airport transfers.

Are pets allowed at Thalassa Boutique Hotel - Adults Only?

Yes, pets are welcome at Thalassa Boutique Hotel - Adults Only, but we suggest calling ahead to confirm details.

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

Room rates at Thalassa Boutique Hotel - Adults Only vary based on dates, hotel policy, and other factors. Enter your travel dates to check current prices.

What are the check-in and check-out times at Thalassa Boutique Hotel - Adults Only?

Check-in at Thalassa Boutique Hotel - Adults Only starts at 15:00-23:30, and check-out is at 11:00.

About This Property

Nearest AirportKefalonia International Airport
Distance to Airport6.22KM
Average Price FromUSD598
Hotel Star Rating4