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9.6

346 reviews

Onyx Hotel & Suites

Onyx Hotel & Suites

1 Karterados , Santorini, 84700, Greece

Choose dates to view prices

Outdoor swimming pool

Free Private Parking

Free wifi

Hot tub

Air conditioning

Bar

Sun deck

Private entrance

Onyx Hotel & Suites

Onyx Hotel & Suites is a 3-star retreat in Karterádhos, Greece, tucked just 0.2mi from the city center. The street address is 1 Karterados, placing it in easy reach of local sights while keeping a relaxed, welcoming vibe. Expect comfy, soundproof rooms with air conditioning and a private entrance, plus free on-site parking to start each day smoothly.

Relax by the outdoor swimming pool (free) or soak up sun on the sun deck and terrace. Free wifi, private parking on site, non-smoking rooms, and free toiletries add everyday ease, while a bar, patio, balcony, and beach-ready touches like free beach umbrellas and chairs amp up the stay. For arrivals and departures, shuttle service and airport shuttle are available for extra charges.

Reviews total 346, offering a well-rounded read of guest experiences. Located at 1 Karterados in Karterádhos, Greece, the property sits about 0.2mi from the city center, making a stroll into town an easy option.

An outdoor infinity pool awaits, with an adults-only policy that keeps the vibe breezy and relaxed. The pool area opens onto a sun deck and terrace, while free beach umbrellas and chairs invite days by the water. The bar, patio, and balcony offer plenty of spots to unwind with a drink or a snack, soaking in the sea breeze. Practical comforts like free wifi and private on-site parking keep plans simple, and shuttle service or airport shuttle are available for a small extra charge.

There's a broad slate of room options, from Standard with Pool View (sleeping up to 4 adults and 3 children with a king bed) to Executive and Executive Suite with pool views. For sea lovers, Luxury Suite, Sea View, Hot Tub and Deluxe Suite, Sea View offer ocean vistas and relaxing retreats, while spaces like the Executive Suite span generous rooms—538 square feet in size. Larger groups can find ample space in Deluxe Suite, Sea View (sleeping up to 8 adults and 5 children) and Junior Suite, Pool View (398 square feet, up to 5 adults and 3 children). Many options pair pool or sea views with layouts designed for couples, families, or groups.

Payment is straightforward with cash or Visa and Mastercard accepted, and private parking on site keeps plans easy. Non-smoking rooms are standard, aligning with a relaxed island vibe. After a day of exploring Karterádhos, the combination of an adults-only infinity pool, sea-view options, and a bar-ready terrace invites a cheerful wind-down before the next island adventure.

Closest airports

Santorini Airport

1.8mi

Paros National Airport

46.1mi

Cyclades Islands, Naxos Airport

46.5mi

Astypalaia Airport

52.8mi

Milos Island National Airport

57.6mi

Most popular amenities

Outdoor swimming pool

Free Private Parking

Free wifi

Hot tub

Air conditioning

Bar

Sun deck

Private entrance

Parking On Site

Terrace

Soundproof rooms

Non-smoking rooms

Beach umbrellas

Beach chairs/Loungers

Patio

Balcony

Free toiletries

Rooms

Executive Suite in Onyx Hotel & Suites

Show 13 photos

Executive Suite

1 King Size Bed

1 Sofa Bed

540 sqft

Private Bathroom

Terrace

Private entrance

Minibar

x4

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Suite with Hot Tub in Onyx Hotel & Suites

Show 11 photos

Suite, Hot Tub

1 King Size Bed

270 sqft

Hot tub

Private Bathroom

Balcony

Private entrance

More details

Junior Suite with Pool View in Onyx Hotel & Suites

Show 11 photos

Junior Suite, Pool View

2 Sofa Beds

1 King Size Bed

400 sqft

Private Bathroom

Terrace

Private entrance

Minibar

x5

+

x3

More details

Economy Quadruple Room in Onyx Hotel & Suites

Show 18 photos

Economy, Quadruple

1 Sofa Bed

1 Queen Size Bed

700 sqft

Private Bathroom

Terrace

Private entrance

Minibar

x4

+

x3

More details

Standard King Room in Onyx Hotel & Suites

Show 10 photos

Standard, King Size

1 King Size Bed

270 sqft

Private Bathroom

Terrace

Private entrance

Minibar

More details

Show 9 photos

Executive, Pool View

More details

Standard, Pool View

1 King Size Bed

x4

+

x3

More details

Luxury Suite, Sea View, Hot Tub

More details

Triple Room, Pool View

More details

Deluxe Suite, Sea View, Hot Tub

More details

Deluxe Suite, Sea View

x8

+

x5

More details

Triple Room

More details

Guest reviews

9.6

346 reviews

Categories of assessments

Cleanliness

Comfort

Location

Facilities

Staff

Value for money

WiFi quality

Featured reviews:

🇮🇱

Anonymous

10

August 2025

Firstly, the place was a m a z i n g!!! we got a great hospitality from Denisa and Victoria- they both helped us through all the time we've spent there! from the very beggining until the very last day of our trip, both of them talked to us with full patiance and with great advices for places to travel or eat. Additionaly, every problem we had they did not hesitate and came strightly to check if anything was ok. Denisa was such a lovely women to talk to- not only she helped us but you could feel her wormth and love as if you know her for years. Victoria was also such a kind hearted women that has always been there for us no matter what! the hotel itself was very big and convinient we had a large room with plesent view and a very nice pool to swim in. All in all, it was a great expirience and we hope we could visit there again.

🇮🇪

Lisa

10

August 2023

Onyx is as close to flawless as I have experienced! The rooms are beautiful - we stayed in a junior suite with plenty of room for 2 adults and 2 teenagers for 2 days. The decor is beautiful and the place is spotlessly clean. The staff are AMAZING. So helpful and so friendly. Thanks to Konstantina and Tamta for being so helpful. Poolside bar is lovely and breakfast there is lovely - there’s plenty to choose from. Perhaps in time they might be able to offer a sandwich or salad at lunchtime - in the absence of that, we got gorgeous toasted sandwiches in a new cafe around the corner and ate them on our terrace. Location is lovely - It’s about a 20 minute walk to Fira town centre or €25 in a taxi. You could taxi in and walk home as it’s downhill! I would go back in a heartbeat.

🇨🇿

Švandová

10

July 2025

This place and service of the staff is awesome. From the first experience at the reception till you leave.. Hotel is very modern and stylish. Rooms were spacious, comfortable and overall beautifully designed! Super clean and they do cleaning service daily! Pool area is perfect! You can fully enjoy the day by the pool on comfortable sunbeds. Also pool bar is open daily with all the drinks you may need. But what we really liked the most was the professional approach of the statf. They were just great, very friendly and always ready to help if you need anything! We received pretty good recommendations what to visit, where to eat from the girls at the reception - tried all of them😁 and we had the best experiences! Breakfast was fantastic - everyday you can choose different varieties and you eat in the very nice area near the pool with nice views! Overall the best stay! Perfect location - close to everything we wanted to see - we used car, but i believe you can even walk to Fira and it’s not that far.. By the car everything is like 15-20 minutes drive. Parking place at the hotel! Thank you for your great job! Would love to come here again!

Nothing to say.

🇬🇧

Jessica

10

August 2025

This hotel was absolutely amazing! The reception staff were incredibly helpful and couldn’t do enough for you. The hotel was clean and so comfortable! The breakfast was superb and the lady behind the bar was absolutely brilliant - her frozen strawberry mocktails went down a treat with our kids! Location was perfect for us, very short bus ride away from centre of Fira and bus service was very regular and easy (again thanks to the help from the reception staff). Thank you so much for such a lovely stay! We wish we stayed longer!

We wished we had organised a late checkout as there was no shower around the pool for when we got dressed to travel home! We will remember for next time :-)

🇬🇧

Natasha

10

April 2025

The hotel was gorgeous and finished to such a high spec I was amazed we got it for the price we did. The staff are what really made the stay a 10/10 both Denisa and Victoria went above and beyond to make our stay the best. I wished we had stayed longer! We told them our time limit and budget and they recommend several things we could do in that time, we managed to do them all and under budget. I even had a query about stamps and postcards which they not only answered, but solved by obtaining the stamps and posting them for me. Honestly, greek hospitality is something else. This will be a repeat booking for me for years to come, I can't recommend it enough.

We only stayed one night, I wish we had booked longer!

🇫🇷

Recipe

10

May 2024

The staff were amazing! Especially Denisa and Maria, our receptionists. They were smiling, welcoming and considerate. (Our experience in Athens was not like this) We arrived knowing not much about Santorini and they gave us a pro recommendation for all the things we can do here. They can also rent cars(at a cheaper price than airport) and book cruise for you. They prepared a surprise honeymoon cake I asked for which was absolutely delicious and pretty. They even gifted us a bottle of Greek white wine and upgraded our room. Thanks! You can feel they had a good training and their goal is to make you feel at home and enjoy your holiday with no worries. A good service is why onyx have a good review and stand out from surrounding fierce competition. As for the hotel itself. It is in the middle of the island, close to Fira and 20 mins drive to Oia. The room was cleaned everyday, bed was comfortable. Many choices for breakfast. Pool was pretty with progressing depth.

The breakfast coffee choice is limited, I guess it’s made from powder with water. We had to pay extra to have a cappuccino which is more expensive than a bar within walking distance. Would be nice if they provide a coffee machine or make coffee for guests. After all we paid for our breakfast.

🇬🇧

Dimitri

10

April 2025

The hotel staff and amenities were amazing. The hotel staff was very friendly and always tried to ensure we had everything we needed. The breakfast service was absolutely amazing, the gentleman always gave us ideas where to go and was pleasure to chat with. The bar service was great, we had some amazing cocktails while laying at the comfortable beach chairs enjoying the sun. Cleaners ensure we always had clean towels and our room looked spotless.

🇨🇾

Christiana

10

August 2024

The hotel is located in the quiet area of ​​Karterados, 5 minutes by car from Fira. Maria at the reception, welcomed us with a smile and gave us information about restaurants and activities. She also made us a reservation at a great restaurant in Pyrgos and arranged for us to have perhaps the best table to watch the sunset. Denisa, the other girl at the reception, also very, very helpful ❤️ The room was spacious enough for 4 people and spotlessly clean. The pool area was clean and quiet, ideal for relaxing. The pool is open until eight so you can see the sunset as you swim. Litsa at the bar is a bonus for the hotel. Always cheerful and willing to help. Litsa, we missed the margaritas :) If you rent a car, there is a comfortable parking space right outside the hotel. You made our stay in santorini even more magical and wonderful ❤️

🇺🇸

Christophe

9.1

September 2024

Very nice hotel! We were met by Maria at the reception desk who went over and above to explain about the hotel, amenities, and things to see and do on Santorini. She even helped us book an afternoon catamaran cruise for the next day :) Our room was very spacious, with a large separate sitting area - way bigger than expected! Great pool area with lounge chairs, and bar with both drinks and light snack food options. Excellent breakfast! Very good location - only a couple of minutes from Fira.

Only minor negative point was the rain shower head in our room was clogged quite badly - it likely needed a good decalcification. Other than that, we hated that we'd only booked for 3 nights ;)

🇬🇧

Chelsey

10

July 2024

We have just returned from Santorini and stayed at Onyx during our stay on the island. The location is perfect if you want some some tranquility away from the crowds in Thira, but equally a close distance when you do want to dip in. As its central on the island, the north and south of the island are in easy reach, especially if hiring a car or quad. Katia, Denisa, Litsa and all of the other staff gave us a typically Greek welcome with their friendliness, and they went above and beyond to make our stay special, from arranging airport transfers, restaurant recommendations and reservations to car hire. We couldn’t have asked any more of them and they were all fabulous! The rooms are very clean, and high standard with a greek contemporary vibe, the pool area is just as lovely! Breakfast was simple continental, with a small hot food offering (eggs & bacon/sausage), but the food was lovely and enough to start our day. The Greek salad we ordered at lunch time from the pool bar was everything we love about Greek food. We had an amazing stay and would absolutely return and recommend in a heartbeat!

My only constructive feedback is that the drink prices at the pool bar are on par with the caldera view bars/restaurants and could be cheaper for residents (we’d have definitely spent more at the bar rather than at the local shop if this was the case).

Points of Interest Around Onyx Hotel & Suites

Attractions

Fira

1mi

White Door Theater (White Door Theatro)

1.2mi

Fira–Oia Hike

1.6mi

Pyrgos (Pyrgos Kallistis)

1.9mi

Port of Santorini (Athinios Port)

2.1mi

Skaros Rock

2.1mi

Monastery of Profitis Ilias (Moni Profitou Iliou)

3mi

Kamari Beach

3.1mi

Ancient Thera

3.6mi

Santorini Hot Springs

3.9mi

Perivolos Beach

4.4mi

Akrotiri

4.9mi

Red Beach

5.4mi

Oia

5.5mi

White Beach

5.6mi

Pools

Location

  • Outdoor

Features

  • Infinity

Age restrictions

  • Adults only

Availability

  • All season

Amenities of Onyx Hotel & Suites

Outdoor swimming pool

Free Private Parking

Free wifi

Hot tub

Air conditioning

Bar

Sun deck

Private entrance

Parking On Site

Terrace

Soundproof rooms

Non-smoking rooms

Beach umbrellas

Beach chairs/Loungers

Patio

Balcony

Free toiletries

Stay rules - Onyx Hotel & Suites

  • Check-in / Check-out

  • Pets

  • Internet

  • Age restrictions

  • Curfew

  • Parking

  • Children and beds

  • Cards accepted at this property