Welcome to JW Marriott Hotel Istanbul Marmara Sea

Luxury & Wellness at our Spa Hotel

On-Site Outlets
7 Days of Well-Being in Istanbul
Whether it’s finding a tranquil place in the serenity of a secret garden, nourishing your palate with fresh, local flavors, or indulging in the renewal of a spa experience, explore all the wonderful ways to focus on The Whole You within a carefully curated guide.
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ISTMS Spa Entrance

La Vallée SPA at JW Marriott Marmara Sea

Luxuriate in one of the two indoor pools or the contemporary Turkish baths, stop by our green juice bar to nourish your body, or book a spa treatment with our experienced therapists, during which you’ll be pampered with the finest La Vallée products.

Unleash the Power of Sustainable Travel!
As part of our dedication to sustainable practices, we offer our guests the unique opportunity to experience our TOGG electric vehicle through test drives. Feel the power of electric mobility, and witness how luxury and sustainability seamlessly coexist.
La Valleeé Fitness

La Vallée Spa Fitness

Maintain your fitness routine at our hotel gym featuring state-of-the-art equipment

ISTMS Indoor Pool


Indoor Pool

Mon-Sun: 7:00 AM-10:00 PM


Towels provided


Children's Pool

Swimming Pool - Open from May to October only

Mon-Sun: 10:00 AM-8:00 PM


Towels provided

Children's Pool


Indoor SPA

Towels provided at whirlpool

Discover more than 17,000 fish species from the Black Sea to the Pacific at the Istanbul Aquarium.
Endless shopping experiences available nearby Atakoy Plus, Galleria, Carousel, and more.
An advantageous location easily accessible to Istanbul International Airport and the city center.
Travel in style and comfort via our luxurious hotel shuttle to the historical sites of Istanbul.
A tranquil setting for business trips as the closest luxury hotel to top industry and trade centers.
Close vicinity to lively cultural entertainment at Veli Efendi Hippodrome and Sinan Erdem Dome.

Frequently Asked Questions