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Istanbul

JW Marriott Hotel Istanbul Marmara Sea

Ataköy 2-5-6 Kisim Mah., Istanbul, 34158

9.6 Wonderful133 guest reviews

Live availability

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Check-in
Nov 24, 2026
Check-out
Nov 26, 2026
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HAPPI EXPERIENCE

The stay, in detail

  • Spa and Recreational Amenities

    Enjoy massages, body treatments, and facials at the spa, and take a dip in the indoor or outdoor pool.

  • Dining Options and Bars

    Indulge in culinary delights at the 3 restaurants and coffee shop/cafe, unwind at the 2 bars/lounges with a refreshing beverage.

  • Comfortable Accommodations

    Relax in one of the 231 air-conditioned rooms featuring minibars and memory foam beds with premium bedding, with complimentary Wi-Fi and LED TVs for entertainment.

Relax in style and make unforgettable memories in Istanbul.

HAPPI HIGHLIGHTS

  • Friendly staff

  • Excellent amenities

At the hotel

Popular amenities

53 listed
  • 24-hour business center
  • 24-hour front desk
  • Accessible airport shuttle
  • Airport transportation - pickup (surcharge)
  • At least 80% of all lighting comes from LEDs
  • ATM/banking
  • Banquet hall
  • Biodegradable/compostable stirrers
  • Breakfast available (surcharge)
  • Change of bed sheets (on request)
View all amenities

Pools & wellness

  • Full-service spa
  • Health or beauty spa nearby
  • Outdoor pool - seasonal
  • Wheelchair-accessible pool
  • Wheelchair-accessible spa

Dining & drinks

  • Comprehensive food waste policy
  • Vegetarian breakfast available
  • Wheelchair-accessible on-site restaurant

Fitness & outdoors

  • Comprehensive recycling policy
  • Garden
  • Recycling
  • Rooftop garden
  • Terrace
  • Vegetable garden
  • Wheelchair-accessible fitness center

Rooms & comfort

  • Change of towels (on request)
  • Turkish bath/Hammam

Safety & cleanliness

  • Multilingual staff
  • Smoke-free property

Getting around & access

  • Covered parking
  • Elevator
  • Free self parking
  • No accessible airport shuttle
  • Secured parking
  • Wheelchair accessible
  • Wheelchair accessible parking
  • Wheelchair-accessible van parking

Guest services

  • Concierge service
  • Luggage storage
  • Safe-deposit box at front desk

Services & essentials

  • Double-glazing on all windows
  • Electric car charging station
  • Energy-saving switches
  • Free WiFi
  • Housekeeping on request
  • LED light bulbs
  • No single-use plastic stirrers
  • Portable hoist available
  • Porter/bellhop
  • Vegan menu options available
  • Vegetarian menu options available
  • Water-efficient showers only
  • Wedding services

Review in focus

133 reviews
10/ 10
Great
Mustafa · 2025-10-12

The guest experience

9.6out of 10
133 verified reviews

Loved most

  • Friendly staff
  • Excellent amenities

How guests scored the stay

  • Service10.0

    The staff was noted to be very friendly and accommodating, providing excellent service.

  • Room Quality10.0

    Rooms are spacious, comfortable, and clean as highlighted by guest experiences.

  • Overall Experience10.0

    The overall experience was exceptional as evidenced by consistently positive remarks.

  • Food and Beverage9.5

    Food quality was well received, with great breakfast and local cuisine available.

  • Cleanliness9.4

    Cleanliness was praised in multiple reviews indicating top-notch comfort and cleanliness.

  • Value for Money9.3

    Guests felt the facilities and overall quality justified the costs, affirming good value.

  • Location9.3

    The location is convenient, close to walkable areas, although not directly in the older parts of Istanbul.

  • Amenities9.3

    Amenities were abundant, including restaurants, pool, gym, spa, and lounge access.

Live guest feedback

Guest reviews

Consistent

95% of 20 recent stays rated 8+

9.6133 reviews

  • Guest review

    10/10

    Mustafa · 2025-10-12

    “Great ”

  • Guest review

    8/10

    Osman · family · 2025-10-11

    “Stuff could be nicer very expensive not too much restaurant walking distance ”

  • Guest review

    10/10

    Targa · partner · 2025-10-10

    “Excellent as always ”

  • Guest review

    10/10

    Dmitrii · 2025-10-08

    “I would like to thank the JW Marriott Hotel Istanbul Marmara Sea team. The exceptional experience started from when my family and I walked through the doors. We were treated with refreshing drinks and the front desk staff (Candan) and concierge were so helpful. The rooms were outstanding, the atmosphere was calming, the restaurants were great. Anything we needed, the staff was helpful with assisting. We especially enjoyed the tasty gifts. The wife was delighted and our mothers have nothing but nice memories. We are already planning for our next stay.”

  • Guest review

    10/10

    KEMAL · 2025-10-06

    “Very good”

  • Guest review

    10/10

    Vishal · 2025-09-29

    “Amazing Hotel! Beautiful and accommodating in every fashion!”

  • Guest review

    10/10

    Mark · partner · 2025-09-17

    “Great property. Short ride to all the sites. ”

  • Guest review

    10/10

    Fikret · family · 2025-09-12

    “Excellent hotel with walkable area by the water”

  • Amazing hotel

    10/10

    Masih · 2025-09-11

    “Best hotel we have stayed in. The service, comfort and cleanliness, were all top notch. ”

  • Guest review

    10/10

    Jeffrey · family · 2025-08-25

    “We absolutely loved this hotel. The property has everything that we wanted: great restaurants (one with local food), pool, gym, spa and beautiful spaces in common areas to relax, sit, or read. While not near the older parts of Istanbul, it was not too remote from shops or walkable areas.”

  • Guest review

    10/10

    Neena · family · 2025-08-23

    “Excellent property with beautiful views of Marmara sea. Staff is very friendly and went out of their way to make us comfortable. We were upgraded without asking with access to lounge which had excellent breakfast and snacks through the day.”

  • Guest review

    10/10

    Asel · family · 2025-08-19

    “We really enjoyed our stay. As a Gold member, we got upgraded to a 2 bed/2 bathroom residence apartment, which was spacious, comfortable, clean and just wonderful.”

  • Guest review

    10/10

    Ahmad · 2025-08-17

    “The hotel is still new, the rooms size is very good, and the staff are very friendly and helpful. ”

  • Guest review

    10/10

    Scott · family · 2025-08-16

    “Hotel management was wonderful and very accommodating. Food was great and the rooms were clean and had excellent amenities. ”

  • Guest review

    2/10

    Ehsan · 2025-08-14

    “Do”

  • Guest review

    10/10

    Jimisha · 2025-08-09

    “Very nice and clean luxurious place ”

  • Guest review

    10/10

    Amir Ali · family · 2025-08-07

    “Very nice facility, Modern and very comfortable.”

  • Guest review

    10/10

    Dr. Rasoul · 2025-07-14

    “Phenomenonal Experience”

  • Guest review

    10/10

    Mikhail · 2025-07-09

    “Very beautiful resort. ”

  • Guest review

    10/10

    John · 2025-06-29

    “Excellent hotel and enjoyed our stay. Beautiful views all around the property. ”

View all guest reviews

Hotel info and reviews come from third-party sources.