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H2O: Seafood & Sushi, Smithtown, NY

H2O: Seafood & Sushi

4.6 (4435)
$31 to $50
Seafood
215 West Main Street, Smithtown, NY 11787

Make a reservation

2 people
7:00 PM
Booked 17 times today

About this restaurant

  • Neighborhood gem
  • Good for special occasions
  • Great for outdoor dining
Since 2001, H2O Seafood & Sushi has showcased seasonal seafood, served with passion, and conceived with creativity. Designed with an upscale New England feel, you’ll feel right at home at H2O in our warm and inviting space. And what’s on our menu is dictated by what’s in the sea, with our culinary team proudly sourcing local fish and supporting local farmers through their creative takes in the kitchen.

Guests are invited to sit at our expansive gray marble bar while feasting on fresh sushi or our modern American seafood classics. Our delicious menu not only features abundant fish, but also satisfies land lovers with celebrated dishes like filet mignon wellington with mushroom duxelles and brie fondue or our roasted half chicken with cornbread stuffing, mushrooms, and chicken jus.

Weekly specials include Happy Hour, as well as our 3-course Wednesday Wine Dinners, which curate pairings of wine with each off-menu course.

Reservations are recommended but walk-ins are always welcome.

Additional information

  • Dining style
    Casual Dining
  • Price
    $31 to $50
  • Cuisines
    Seafood, Sushi, Contemporary American
  • Hours of operation
    Dinner Fri 4:00 pm–10:00 pm Sat 3:00 pm–10:00 pm Sun 3:00 pm–9:00 pm Dinner/Bar Mon–Thu 4:00 pm–10:00 pm
  • Phone number
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Dress code
    Smart Casual
  • Catering
    Available. Please contact the restaurant for further details.
  • Private party facilities
    From the very essence of the ocean comes a dramatically different restaurant, inspired by the seafood of the world and infused by a spirit that is fresh, refreshing and totally modern.
  • Delivery & takeout
  • Neighborhood
    Smithtown
  • Cross street
    Edgewood Avenue
  • Parking details
    Private Lot
  • Public transit
    LIRR to Smithtown
  • Entertainment
    Happy Hour Monday through Friday, 4-7PM
  • Additional
    Banquet, Bar/Lounge, Beer, Cocktails, Corkage Fee, Delivery, Full Bar, Happy Hour, Non-Smoking, Outdoor Firepit, Patio/Outdoor Dining, Patio/Outdoor Dining, Takeout, Wheelchair Access, Wine
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What 4,435 people are saying

H2O: Seafood & Sushi reviews from people who’ve dined at this restaurant. Based on recent rating.

Overall ratings and reviews

Reviews can only be made by diners who have eaten at this restaurant

4.6
4.6 based on recent ratings
  • 4.6Food
  • 4.7Service
  • 4.6Ambience
  • 4.3Value

NoiseModerate

Loved For

  • Suffolk

    Seafood

Review summary

AI-generated from verified diner reviews
H2O: Seafood & Sushi offers a delightful dining experience with "excellent service" and "delicious food." It's praised for its fresh seafood, "superb sushi," and creative dishes like "shrimp and lobster wontons." Guests appreciate the attentive staff and cozy ambiance. It's perfect for celebrations, with special touches for anniversaries.
4,435 Reviews
  1. Kristina

    New York City1 review

    4.0

    Dined 2 days ago

    1. Overall 4
    2. Food 5
    3. Service 4
    4. Ambience 5
    Food was amazing as always just not a fan of the martinis ordered a slightly dirty martini and received a extra dirty martini

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  2. Linda VIP

    New York City56 reviews

    5.0

    Dined 4 days ago

    1. Overall 5
    2. Food 5
    3. Service 4
    4. Ambience 5
    Although the food, service and ambience were very good, I think prices are too high for what you get. But that's probably the case for all restaurants now. I've been to H2O several times in the past and it was packed every time, this time there were a lot of empty tables. People can't afford to eat out anymore.

    Is this helpful?

  3. stuart

    Orlando / Central Florida East12 reviews

    4.0

    Dined 5 days ago

    1. Overall 4
    2. Food 5
    3. Service 5
    4. Ambience 5
    We sat outside and it was very nice. Excellent service, poor spicy margaritas no alcohol. Overall very nice.

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  4. Don

    New York City4 reviews

    5.0

    Dined 5 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Everyone was happy with their order We will be going back

    Is this helpful?

  5. Patricia

    New York City5 reviews

    3.0

    Dined on July 19, 2025

    1. Overall 3
    2. Food 3
    3. Service 4
    4. Ambience 4
    Usually love our meals here but for some reason we all were a bit disappointed

    Is this helpful?

  6. David VIP

    New York City289 reviews

    5.0

    Dined on July 16, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The shrimp and lobster wontons were excellent. The bar burger was juicy and cooked beautifully. Brittany was an awesome bartender!

    Is this helpful?

  7. Kimberly

    New York City2 reviews

    5.0

    Dined on July 15, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Absolutely 5 star dinner! We arrived and were greeted by friendly staff who read that it was our anniversary from the reservation. We received a cute happy anniversary card on our table and were seated promptly. The staff was EXCELLENT. Our waiter Michael was informative, not pushy and friendly. An “old school” approach for waitstaff. Straight backed walk, prompt service, great beer pour. Friendly, knowledgeable and available but not overbearing. The place is clean and the booths are comfortable. It was still daylight but the light colored walls and motif make me think it still fairly airy and light once it’s dark. Food was delicious. Calamari was a highlight for me because it’s served with the peppers mixed in which you don’t find often. My husband had the Wellington and said it had a rich flavor and was a great portion size. It’s not a cheap restaurant, but the prices match the quality and service. Highly recommend

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  8. Robin VIP

    New York City16 reviews

    5.0

    Dined on July 12, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The garlic Parmesan shrimp was awesome. And the sushi roll. Great outdoor seating. Waiter so friendly.

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  9. Jan

    New York City1 review

    5.0

    Dined on July 12, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Our dining experience was exceptional at H2O last evening. We both agreed that it was the most enjoyable and satisfying meal we have had in a long time. Thank you very much! Jan

    Is this helpful?

  10. Oscar

    New York City7 reviews

    5.0

    Dined on July 11, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Staff is really friendly! Service is five stars! Food was delicious! Best sushi we have ever tried!

    Is this helpful?

FAQs

H2O: Seafood & Sushi offers takeout which you can order by calling the restaurant at (631) 361-6464.

H2O: Seafood & Sushi is rated 4.6 stars by 4435 OpenTable diners.

H2O: Seafood & Sushi does offer gift cards which you can purchase here.

Yes, you can generally book this restaurant by choosing the date, time and party size on OpenTable.

  1. Home
  2. United States
  3. New York State
  4. Suffolk
  5. Smithtown

Make a reservation

2 people
7:00 PM
Booked 17 times today
Google Map for H2O: Seafood & Sushi

215 West Main Street, Smithtown, NY 11787

Additional information

  • Cross street
    Edgewood Avenue
  • Neighborhood
    Smithtown
  • Hours of operation
    Dinner Fri 4:00 pm–10:00 pm Sat 3:00 pm–10:00 pm Sun 3:00 pm–9:00 pm Dinner/Bar Mon–Thu 4:00 pm–10:00 pm
  • Price
    $31 to $50
  • Cuisines
    Seafood, Sushi, Contemporary American
  • Dining style
    Casual Dining
  • Dress code
    Smart Casual
  • Parking details
    Private Lot
  • Public transit
    LIRR to Smithtown
  • Payment options
    AMEX, Discover, Mastercard, Visa
  • Entertainment
    Happy Hour Monday through Friday, 4-7PM
  • Additional
    Banquet, Bar/Lounge, Beer, Cocktails, Corkage Fee, Delivery, Full Bar, Happy Hour, Non-Smoking, Outdoor Firepit, Patio/Outdoor Dining, Patio/Outdoor Dining, Takeout, Wheelchair Access, Wine
  • Delivery & takeout
  • Phone number
  • Catering
    Available. Please contact the restaurant for further details.
  • Private party facilities
    From the very essence of the ocean comes a dramatically different restaurant, inspired by the seafood of the world and infused by a spirit that is fresh, refreshing and totally modern.
Gift card

Gift card

Send gift cards instantly by email or print to present in person.

Send a gift card
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