The Sign Kocaeli Thermal Spa Hotel & Convention Center

5.0 star property

Room options

View all photos for Standard Double or Twin Room

Hypo-allergenic bedding, minibar, in-room safe, laptop workspace

Standard Double or Twin Room

8.6 out of 10
Excellent
(10 reviews)
  • 20 sq m
  • Sleeps 3
  • 1 Double Bed and 1 Single Bed

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

Suite, 1 Queen Bed, Connecting Rooms, Mountain View

Suite, 1 Queen Bed, Connecting Rooms, Mountain View

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

About the area

Basiskele

A luxury stay in Basiskele awaits you at The Sign Kocaeli Thermal Spa Hotel & Convention Center. You'll be 2.3 km (1.4 mi) from Sea of Marmara and 14.5 km (9 mi) from Fevziye Mosque. Highlights at this family-friendly hotel include 2 restaurants, 3 indoor swimming pools and a full-service spa. .A day of pampering can include massages, body scrubs and facials along with access to the hot springs/mineral springs and sauna. For a drink, you can stop by the hotel's own lounge bar. Enjoy the free kids' club, Turkish bath/hammam, steam room and seasonal outdoor swimming pool. Additionally, you'll find free Wi-Fi in public areas, a conference centre and a children's swimming pool. There's also free self parking, along with the convenience of an airport shuttle. .Sights within a 20-minute drive of this 5-property class Basiskele hotel include Yeni Cuma Mosque and Museum of Archaeology and Ethnography.

What's nearby

  • Yeni Cuma Mosque - 14 min drive - 13.3 km
  • Fevziye Mosque - 14 min drive - 13.6 km
  • Izmit Clock Tower - 15 min drive - 14.4 km
  • Museum of Archaeology and Ethnography - 15 min drive - 14.4 km
  • Sirri Pasha Mansion - 15 min drive - 14.7 km

Getting around

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

Restaurants

  • ‪Fika Kahve&Mutfak - ‬4 min walk
  • ‪Gökbayrak Kardeşler Cafe&Büfe - ‬16 min walk
  • ‪Küçükyıldız Cafe - ‬19 min walk
  • ‪İpek Cafe - ‬15 min walk
  • ‪Ilıca Cafe - ‬14 min walk

About this property

The Sign Kocaeli Thermal Spa Hotel & Convention Center

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 nearby snack bar/deli. You can enjoy a drink at the bar/lounge. Public spaces have free WiFi.

A business centre 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 centre
  • 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
  • Games room or arcade
  • Pool or billiards table
  • Terrace
  • Garden
  • BBQ grill(s)
  • Beauty salon
  • Newspapers in lobby (free)
  • Bellhop
  • Lift
  • Smoking in designated areas
  • Bar or lounge
The Sign Kocaeli Thermal Spa Hotel & Convention Center offers 164 accommodations with minibars and a safe. A pillow menu is available. LCD televisions come with satellite channels.

Bathrooms include a shower, bathrobes, slippers and complimentary toiletries. Guests can surf the web using complimentary wireless Internet access. Hypo-allergenic bedding and an iron/ironing board can be requested. A nightly turndown service is provided and housekeeping is offered on a daily basis.

Guests can pamper themselves with a trip to the on-site 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.

Similar properties

Seasonal outdoor pool, free pool cabanas, pool umbrellas
TRYP by Wyndham Izmit
Basiskele
  • Pool
  • Spa
  • Parking included
  • Free Wi-Fi
4.1 out of 5, Very good, 90 reviews
The price is AU$165
includes taxes & fees
6 Apr - 7 Apr
TRYP by Wyndham Izmit

Property amenities

Internet

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

Parking and transport

  • Return airport shuttle (surcharge)
  • Free self parking on site
  • Limited on-site self parking

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

Family friendly

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

Conveniences

  • 24-hour front desk
  • Free newspapers in lobby
  • Hair salon
  • Laundry facilities
  • Luggage storage
  • Safe at front desk

Guest services

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

Business services

  • 4 meeting rooms
  • Business centre
  • Conference centre

Outdoors

  • Barbecue grill
  • Garden
  • Pool loungers
  • Pool umbrellas
  • Terrace

Full-service spa

  • 8 treatment rooms
  • Aromatherapy
  • Body scrubs
  • Facials
  • Hot/mineral springs
  • Manicures/pedicures
  • Massage
  • Sauna
  • Steam room
  • Turkish bath

Accessibility

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

More

  • Banquet hall
  • Designated smoking areas

Room amenities

Bedroom

  • Free cot
  • Hypo-allergenic bedding
  • Pillow menu

Bathroom

  • Dressing gowns
  • Free toiletries
  • Hair dryer
  • Private bathroom
  • Shower
  • Slippers
  • Towels provided

Entertainment

  • LCD TV with satellite channels

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 cots (infant beds)!

Payment types

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 all accommodation.

Property Registration Number 12799

We should mention

  • The seasonal pool will open on 09 August and close on 10 September.
  • 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

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

Yep, The Sign Kocaeli Thermal Spa Hotel & Convention Center has a free self car park.

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

As of 5 Apr 2026, prices found for a 1-night stay for 2 adults at The Sign Kocaeli Thermal Spa Hotel & Convention Center on 6 Apr 2026 start from AU$108, 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.

Are there any beaches close to The Sign Kocaeli Thermal Spa Hotel & Convention Center?

The closest beach to The Sign Kocaeli Thermal Spa Hotel & Convention Center is Agva Beach (48.9 km).

Is there a spa on site at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

Yep, there is an onsite spa at The Sign Kocaeli Thermal Spa Hotel & Convention Center. It has a steam room, a sauna and hot springs. You'll enjoy heaps of services like body scrubs, facials and body treatments.

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

Take your pick from 3 indoor swimming pools, a seasonal outdoor pool and a kids' pool. Grab your bathers and lounge poolside while enjoying under the shade of an umbrella. The pool is open from August 09 to September 10.

What luxury perks are available at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

The Sign Kocaeli Thermal Spa Hotel & Convention Center features 3 indoor pools, a full-service spa and 2 restaurants.

Is The Sign Kocaeli Thermal Spa Hotel & Convention Center family-friendly?

You bet! With amenities such as a free children's club and a children's pool, as well as free infant beds in the guestrooms, it's no surprise that The Sign Kocaeli Thermal Spa Hotel & Convention Center is a hit with families.

Is there a free airport shuttle available at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

No, but there's an airport shuttle for a fee.

Is there a bar or restaurant at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

Yep, they've got a lounge bar and 2 restaurants. Pre dinner cocktails anyone?

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

Check-in begins at 2:00 PM. Check-out time is noon.

Are pets allowed at The Sign Kocaeli Thermal Spa Hotel & Convention Center?

No, pets and service animals are not allowed.

The Sign Kocaeli Thermal Spa Hotel & Convention Center Reviews

Reviews

7.6

Good

Rating 10 - Excellent. 46 out of 130 reviews
Rating 8 - Good. 41 out of 130 reviews
Rating 6 - Okay. 17 out of 130 reviews
Rating 4 - Poor. 13 out of 130 reviews
Rating 2 - Terrible. 13 out of 130 reviews

7.8/10

Cleanliness

7.8/10

Staff & service

9.0/10

Amenities

7.4/10

Property conditions & facilities

Reviews

8/10 Good

engin

Stayed 2 nights in Nov 2025

6/10 Okay

Batuhan

Travelled with family
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

6/10 Okay

Angelina

Travelled with family
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

4/10 Poor

Wesam

Business traveller
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

10/10 Excellent

Ayla

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Jun 2025

10/10 Excellent

Orhan

Stayed 2 nights in Jun 2025

10/10 Excellent

Soner

Business traveller
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in May 2025

6/10 Okay

Seyma

Travelled with family
Liked: Cleanliness, room comfort
Disliked: Staff & service
Kızımla haftosaonu tatili için gittim. Genel olarak idare ederdi diyebilirm. Oda temizliği çok iyi, ona lafım yok. Ancak restoran yemek kalitesine göre çok pahalı. Termal havuz asla sıcak değildi sadece bir kapalı havuzla aynı sıcaklıkta idi. Arabamı şarj etmek istedim, dışarıda 4 tane şarj istasyonu var ancak sadece üyelik kartı ile çalışıyor ve nasıl kullanılabileceğini bilen yok. Güvenlik resepsiyona, resepsiyon güvenliğe yönlendirdi. En son bilen arkadaşımız burda değil dediler, telefonla ulaşamaz mıyız dediğimde ise işten çıktı cevabını aldım. Valizimi taşırken yanımda küçük çocuk olmasına rağmen kimse yardımcı olmadı. Çocuk oyun alanı aşırı soğuk ve rutubetliydi, doğru düzgün oyuncak yoktu. En azından ısıtamaz mıyız diye sordum, teknik ile görüşüp mümkün olup olmadığını soracaklarını söylediler ama sonuç olarak ısınmadı ve haber veren de olmadı. Biz tatilimizi sorunsuz tamamladık mı tamamladık. Büyük b eklenti ile gtimezseniz mutsuz olmadan dönebilirsiniz.
Stayed 2 nights in May 2025

10/10 Excellent

servet fatos

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in May 2025

10/10 Excellent

Soner

Business traveller
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
oldukça konforlu bir otel personel ilgili ve yardımcı
Stayed 1 night in Apr 2025

2/10 Terrible

Simge Cemre

Travelled with family
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Otel ve termal harika. Ancak otelden çıkacağımız sabah termale girmek istediğimizde bone olmadan giremeyeceğimizi tanesi 150 tl olan boneleri alıp o şekilde girebileceğimizi söylediler. bu otele 3. Gidişimiz ve kimse bize daha önce Bone takmamızın zorunlu olduğunu söylemedi. Bu oteli tekrar tercih etmeyi düşünmüyorum, daha önceden söylenseydi bonemi alıp girerdim ama normalde olmayan bir kuralı sırf bone satmak için zorunlu hale getirmeleri çok can sıkıcı bir hareketti. Tatilimizin son anını gerginlikle dolu geçirdik.
Stayed 1 night in Apr 2025

10/10 Excellent

Baha

Business traveller
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Oct 2024

10/10 Excellent

Mahmoud

Business traveller
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 1 night in Jan 2024

2/10 Terrible

Melis

Stayed 2 nights in Aug 2023

10/10 Excellent

Kemal

Stayed 1 night in Jul 2023

2/10 Terrible

Cagatay

Stayed 1 night in Jul 2023

8/10 Good

Sebastien

Business traveller
Liked: Cleanliness, staff & service, property conditions & facilities, room comfort
Stayed 4 nights in May 2023

4/10 Poor

Deniz

Stayed 1 night in May 2023

8/10 Good

Lesley

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

10/10 Excellent

Oltan

Stayed 1 night in Apr 2023

10/10 Excellent

GUNER

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

10/10 Excellent

Muhammed sefa

Stayed 1 night in Mar 2023

8/10 Good

sahika

Stayed 1 night in Feb 2023

10/10 Excellent

SERPIL

Stayed 2 nights in Feb 2023

8/10 Good

Faith

Stayed 1 night in Jun 2022