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The Sign Kocaeli Thermal Spa Hotel & Convention Center

Property class: 5 and above
Family-friendly 5-star hotel near Sea of Marmara

Choose dates to view prices

Photo gallery for The Sign Kocaeli Thermal Spa Hotel & Convention Center

Outdoor pool
Bar (on property)
Garden
Lobby
Fitness facility

Reviews

7.6 out of 10
Good

Popular amenities

  • Pool
  • Spa
  • Parking included
  • Free WiFi
  • Restaurant
  • Air conditioning

Explore the area

View in a map
Yeniköy Merkez Mah. Kültür Sk. No:40, Basiskele, Kocaeli, 41275
  • Place, Yeni Cuma Mosque
    ‪13 min drive‬
  • Place, Fevziye Mosque
    ‪14 min drive‬
  • Place, Izmit Clock Tower
    ‪14 min drive‬
  • Airport, Izmit (KCO-Cengız Topel)
    ‪24 min drive‬

Room options

View all photos for Standard Double or Twin Room

Room

Standard Double or Twin Room

8.4 out of 10
Very good
(16 reviews)
  • 20 sq m
  • 1 bedroom
  • Sleeps 3
  • 1 Double Bed and 1 Twin Bed

View all photos for Suite, 1 Queen Bed, Connecting Rooms, Mountain View

Room

Suite, 1 Queen Bed, Connecting Rooms, Mountain View

  • Mountain view
  • 40 sq m
  • 1 bedroom
  • Sleeps 3
  • 1 Queen Bed

About the area

Basiskele

Basiskele retreat .Stay at this Basiskele hotel and you'll be within 2 miles (3 km) of Sea of Marmara and 9 miles (15 km) of Fevziye Mosque. Yeni Cuma Mosque is within 9 miles (15 km) and Bolge Tiyatrosu is within 12 miles (20 km).

What's nearby

  • Yeni Cuma Mosque - 13 min drive - 13.6 km
  • Fevziye Mosque - 14 min drive - 14.0 km
  • Izmit Clock Tower - 14 min drive - 14.7 km
  • Museum of Archaeology and Ethnography - 14 min drive - 14.7 km
  • Sirri Pasha Mansion - 15 min drive - 15.1 km

Getting around

  • Izmit Station - 17 min drive
  • Izmit (KCO-Cengız Topel) - 25 min drive

Restaurants

  • ‪Gökbayrak Kardeşler Cafe&Büfe - ‬16 min walk
  • ‪Kadirga Tepesi - ‬12 min walk
  • ‪Kahve & Sigara Molası ☕🚬✌ - ‬20 min walk
  • ‪Fika Kahve&Mutfak - ‬4 min walk
  • ‪Yeniköy Dondurma Sarayı - ‬18 min walk

About this property

The Sign Kocaeli Thermal Spa Hotel & Convention Center

Family-friendly 5-star hotel near Sea of Marmara
The Sign Kocaeli Thermal Spa Hotel & Convention Center offers its guests a full-service spa, hot springs, and 3 indoor swimming pools. There are 2 restaurants on site, along with a snack bar/deli. You can enjoy a drink at the bar/lounge. Public spaces have free WiFi.

A business center and 4 meeting rooms are available. A children's pool, a seasonal outdoor pool, and a steam room are also featured at the luxury The Sign Kocaeli Thermal Spa Hotel & Convention Center. Free self parking is available.

Smoking is allowed in designated areas at this 5-star Basiskele hotel.

  • 164 guestrooms or units
  • 2 dining venues
  • Deli
  • Kid's club (free)
  • Poolside lounge chairs
  • Umbrellas for the pool
  • Conference center
  • Business facilities
  • Coffee in lobby
  • Dry cleaning
  • Self-service laundry
  • Front desk (24 hours)
  • Storage area for luggage
  • Front-desk safe
  • Tour and ticket information
  • Concierge
  • Game room or arcade
  • Pool or billiards table
  • Terrace
  • Garden
  • BBQ grill(s)
  • Beauty salon
  • Newspapers in lobby (free)
  • Bellhop
  • Elevator
  • Smoking in designated areas
  • Bar or lounge
The Sign Kocaeli Thermal Spa Hotel & Convention Center offers 164 accommodations with minibars and safes. A pillow menu is available. LCD televisions come with satellite channels.

Bathrooms include showers, bathrobes, slippers, and complimentary toiletries. Guests can surf the web using the complimentary wireless Internet access. Hypo-allergenic bedding and irons/ironing boards can be requested. A nightly turndown service is provided and housekeeping is offered daily.

Guests can pamper themselves with a trip to the onsite spa, which has 8 treatment rooms. Services include facials, body scrubs, body treatments, and manicures and pedicures. A variety of treatment therapies are provided, including aromatherapy. The spa is equipped with a sauna, a steam room, and Turkish bath/hammam. There are hot springs on site.

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Basiskele
  • Pool
  • Spa
  • Parking included
  • Free WiFi
4.5 out of 5, Wonderful, 273 reviews
The price is CA $136
CA $151 total
includes taxes & fees
Oct 19 - Oct 20
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Property amenities

Family friendly

  • 3 indoor pools
  • Arcade/game room
  • Children's pool
  • Free children's club
  • In-room crib
  • Laundry facilities
  • Playground
  • Seasonal outdoor pool
  • Snack bar/deli
  • Soundproofed rooms

Internet

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

Parking and transportation

  • Roundtrip airport shuttle (surcharge)
  • Free self parking on site

Food and drink

  • 2 restaurants
  • A bar/lounge
  • Coffee and tea in common areas
  • Snack bar/deli

Things to do

  • 3 indoor pools
  • Arcade/game room
  • Billiards/pool table
  • Children's pool
  • Free children's club
  • Full-service spa
  • Hot springs
  • Playground
  • Seasonal outdoor pool
  • Steam room

Accessibility

  • If you have requests for specific accessibility needs, please contact the property using the information on the reservation confirmation received after booking.
  • Elevator
  • Grab bar in shower
  • Grab bar near toilet
  • Hand-held showerhead
  • Height-adjustable showerhead
  • In-room roll-in shower
  • Low-height counter and sink
  • Low-height electrical outlets in bathroom
  • Raised toilet seat
  • Thin carpet in room
  • Transfer shower
  • Wheelchair accessibility
  • Wheelchair accessible (may have limitations)
  • Wheelchair-accessible bathroom vanity

Room amenities

Entertainment

  • LCD TV with satellite channels

Bedroom

  • Free crib
  • Hypo-allergenic bedding
  • Pillow menu

Bathroom

  • Bathrobes
  • Free toiletries
  • Hair dryer
  • Private bathroom
  • Shower
  • Slippers
  • Towels provided

Food and drink

  • Minibar

More

  • Air conditioning (climate-controlled)
  • Heating
  • Iron/ironing board on request
  • Laptop workspace
  • Phone
  • Safe
  • Soundproofed rooms

Policies

Check-in

Check-in start time: 2:00 PM; Check-in end time: midnight
Minimum check-in age: 18

Check-out

Check-out before noon

Special check-in instructions

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

  • Pets and service animals are not allowed at The Sign Kocaeli Thermal Spa Hotel & Convention Center

Children and extra beds

  • Children are welcome.
  • Rollaway/extra beds are available for EUR 20.0 per day.
  • Free cribs (infant beds)!

Property payment types

  • American Express
  • Mastercard
  • Visa

Important information

Optional extras

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

  • Rollaway bed fee: EUR 20.0 per day

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

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
Safety features at this property include a fire extinguisher
Charges for extra guests may apply and vary according to property policy.
A cash deposit, credit card, or debit card for incidental charges and government-issued photo identification may be required upon check-in.
Special requests are subject to availability at the time of check-in. Special requests can't be guaranteed and may incur additional charges.
    This property is managed by a professional host. The provision of housing is linked to their trade, business, or profession. This property accepts Visa, Mastercard, American Express, debit cards, and cash. For guests' safety, the property includes a fire extinguisher in each accommodation.

Property Registration Number 12799

We should mention

  • The seasonal pool will open August 09 and close September 10.
  • Pets and service animals are not allowed on site.

Property is also known as

Ness Thermal Spa Hotel Basiskele
Ness Thermal Spa Hotel
Ness Thermal Spa Basiskele
Ness Thermal Spa
The Ness Thermal Spa Hotel
The Sign Kocaeli Thermal Spa Hotel Convention Center
The Sign Kocaeli Thermal Spa Hotel & Convention Center Hotel
The Sign Kocaeli Thermal Spa Hotel & Convention Center Basiskele

Frequently asked questions

How close is The Sign Kocaeli Thermal Spa Hotel & Convention Center to the airport?

The Sign Kocaeli Thermal Spa Hotel & Convention Center is 14.5 mi (25-min drive) away from the Izmit (KCO-Cengız Topel) airport, the closest popular airport to the property.

How much does it cost to stay at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

As of Oct 16, 2026, prices found for a 1-night stay for 2 adults at The Sign Kocaeli Thermal Spa Hotel & Convention Center on Oct 18, 2026 start from CA $105, excluding 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.

Does The Sign Kocaeli Thermal Spa Hotel & Convention Center have an airport shuttle?

The Sign Kocaeli Thermal Spa Hotel & Convention Center offers an airport shuttle.

How close is The Sign Kocaeli Thermal Spa Hotel & Convention Center to the beach?

This hotel is 13.7 mi (24-min drive) from Kumyalı plajı and 14.9 mi (25-min drive) from Altinkemer Public Beach. Don't forget your sunscreen!

Does The Sign Kocaeli Thermal Spa Hotel & Convention Center offer free breakfast?

The Sign Kocaeli Thermal Spa Hotel & Convention Center does not offer free breakfast.

Is there a casino at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

No, there is no casino at this hotel.

What time is check-in at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

Check-in start time: 2:00 PM; Check-in end time: midnight.

Is there free parking at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

This hotel offers free self parking.

Does The Sign Kocaeli Thermal Spa Hotel & Convention Center have a pool?

The Sign Kocaeli Thermal Spa Hotel & Convention Center features 3 indoor pools, a seasonal outdoor pool, and a children's pool.

Does The Sign Kocaeli Thermal Spa Hotel & Convention Center have a restaurant?

Yes, there are 2 restaurants on site.

Does The Sign Kocaeli Thermal Spa Hotel & Convention Center have a spa?

This hotel has a spa, which features body treatments, body scrubs, and massages.

How close is The Sign Kocaeli Thermal Spa Hotel & Convention Center to downtown Basiskele?

The Sign Kocaeli Thermal Spa Hotel & Convention Center is 6 mi away from Basiskele.

The Sign Kocaeli Thermal Spa Hotel & Convention Center Reviews

Reviews

7.6

Good

Rating 10 - Excellent. 58 out of 172 reviews
Rating 8 - Good. 56 out of 172 reviews
Rating 6 - Okay. 25 out of 172 reviews
Rating 4 - Poor. 18 out of 172 reviews
Rating 2 - Terrible. 15 out of 172 reviews

7.8/10

Cleanliness

7.8/10

Staff & service

7.4/10

Amenities

7.6/10

Property conditions & facilities

Reviews

Verified review

8/10 Good

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Great place friendly staff
Stayed 1 night in May 2023
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, property conditions & facilities
İ choose this hotel because it's near to port. Hotel is very nice and good condition! Staff was very helpful, especially Mr Arslan at reception he try to help your ever request and kindly person! Highly recommended!!!
Stayed 1 night in Mar 2023
Verified review

10/10 Excellent

Liked: Cleanliness, amenities, property conditions & facilities
Super toll
Stayed 10 nights in Sep 2025
Verified review

4/10 Poor

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

Poor service, no air conditioning in 39c temp

Poor check in. Wanted to check in and go to a business meeting. Couldn’t get to one of the rooms as the key wasn’t working. Went down four times to reception and wasted 45 minutes and nearly missed my meeting. Hotel is not very clean. Air conditioning doesn’t work and when you ask for it to be fixed they lie to you and say we will get it to work which never happens. I travel every 6 weeks and I visited more than 120 hotels,”. This is the worst hotel I ever stayed in and I cannot believe it’s rated with five stars. I will never go back there ever again.
Stayed 3 nights in Jul 2025
Verified review

8/10 Good

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Havuz güzeldi, gittigimizde sendika toplantısı vardi, onun dışında olumsuz birşey olmadi, keyifliydi
Stayed 1 night in Jul 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Güzel bir tesis sadece turizmde tecrübeli yönetici eksikliği hissediliyor
Stayed 1 night in Jul 2026
Verified review

10/10 Excellent

Liked: Cleanliness, property conditions & facilities
Disliked: Staff & service
Rezervasyonum iki kişiydi kızım ve ben annem sonradan gelmeye karar verdi akrabalara bırakacaktım çok uzun yol geldim direk otele eşyaları bırakıp üzerimizi değişip annemi akrabaya bırakmaya gidecektim 84 yaşında kadını odaya bırakmadılar tamam hadi güvenlik diyelim kadın lobide oturdu biz çıkıp üzerimizi değişene kadar bir bardak su bile ikram edilmedi yaşlı kadına personel duyarsız davrandı
Stayed 1 night in Jun 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Çok iyi ve mükemmel bir spa.
Stayed 2 nights in Jun 2026
Verified review

6/10 Okay

Liked: Cleanliness, staff & service
Çalışan arkadaşlar ilgiliydi. Termal havuz soğuktu ve tuvaletleri temiz degildi
Stayed 2 nights in Jun 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, property conditions & facilities
Her koşulda tercih edeceğim bir otel
Stayed 1 night in May 2026
Verified review

8/10 Good

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
2 adet tek yatağı birleştirip çift kişilik yapmışlar yatak seviyeleri eşit değil muhtemelen bir yatak eski diğer yatak ondan daha eski
Stayed 1 night in May 2026
Verified review

6/10 Okay

Liked: Cleanliness, property conditions & facilities
Burası termal bir otel ancak termal havuz çok soğuk acaba soğuk termal otel mi demek lazım?
Stayed 1 night in May 2026
Verified review

6/10 Okay

Liked: Property conditions & facilities
Kullanmadım
Stayed 1 night in May 2026
Verified review

8/10 Good

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Oda temiz, çalışanlar yardımcı oluyor, karma havuzu olması güzel ve aileler için ideal.
Stayed 1 night in Apr 2026
Verified review

6/10 Okay

Disliked: Staff & service
Kahvaltı ücretini ödememize rağmen sabah restoran bölümünde tekrar ücret istediler. Konuyu anlatmaya çalıştığımız personelin tavırları saygısız ve ilgisizceydi.
Stayed 1 night in Apr 2026
Verified review

8/10 Good

Liked: Cleanliness, staff & service, property conditions & facilities
güzel fakat dışarıdan yemek söyledim ve güvenlik kaba bir dille bizi uyardı biraz nazik bir dille söyleyebilirdi yasaksa bile, sanki kyk yurdunda kalıyormuşuz gibi insan azarlamak hoş değil
Stayed 1 night in Mar 2026
Verified review

10/10 Excellent

Liked: Cleanliness, staff & service, amenities, property conditions & facilities
Süper
Stayed 1 night in Mar 2026
Verified review

4/10 Poor

Çift kişilik yatak koymam heri
Stayed 1 night in Feb 2026
Verified review

6/10 Okay

Liked: Cleanliness, staff & service
Disliked: Room comfort
7.katta kaldık, 30-40 sn aralıkla asansörüm gümbür gümbür vurma sesini gece boyu dinledik. Banyoda su neredeyse akmıyor seviyede az geliyor. Ortak kullanılan havuzun sisteminin bozuk olduğu söylendi, buz gibi suya girerek Termal tatil keyfi yaptık. Tek iyi nokta garsonların tavırları ve yemeklerin kalitesi diyebilirim.
Stayed 1 night in Oct 2025
Verified review

8/10 Good

Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Herşey gayet güzeldi
Stayed 2 nights in Oct 2025
Verified review

4/10 Poor

Disliked: Cleanliness, staff & service, property conditions & facilities
Odanın temizliğini yaptık diyip yapmadılar. Çok ilgi alakasız bir yer.
Stayed 2 nights in Sep 2025
Verified review

8/10 Good

Liked: Cleanliness, room comfort
Spa alanı ve masaj hizmeti güzel, odalar konforlu ve büyük, temiz. Tek sorun Aquaparklı havuz temiz değildi, rahatsız olduk yine havuz çevresi yerler pisti. Bu nedenle tekrar gelmeyi düşünmüyorum. Termal ve dışarı havuz içi ve çevresi sürekli temiz tutulmalı.
Stayed 2 nights in Jul 2025
Verified review

10/10 Excellent

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

Güzel

1 gece için gelip doyamayıp 2.geceye de kaldık. Çocuklarım çok memnun
Stayed 1 night in Aug 2025
Verified review

6/10 Okay

Liked: Staff & service, room comfort

Отель тянет на 3-4 звезды

Бассейны не сильно чистые, но нормально, пойдет, в день нашего заезда не работал бассейн и аквапарк на улице , починили только на следующий день и то работало 2 горки только. Нам об этом за ранее не сообщили , сказали только после оплаты, что очень нас расстроило, возможно, если бы сообщили раньше, то мы бы сменили отель. Отель явно не тянет на 5 звезд, я бы оценила на 3-4 звезды. Напитки в ресторане все платные, кроме чая кофе и воды.
Stayed 2 nights in Aug 2025
Verified review

8/10 Good

Liked: Staff & service, property conditions & facilities, room comfort
Yatak örtüsü lekeli idi.Personel güleryüzlü ve yardımsever
Stayed 1 night in May 2025