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H2O: Seafood & Sushi, Smithtown, NY

H2O: Seafood & Sushi

4.7 (4413)
$31 to $50
Seafood
215 West Main Street, Smithtown, NY 11787

Make a reservation

2 people
7:00 PM
Booked 16 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
Gift card

Gift card

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What 4,413 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

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

NoiseModerate

Loved For

  • New York State

    Seafood

  • Suffolk

    Seafood

Review summary

AI-generated from verified diner reviews
H2O: Seafood & Sushi is a standout dining destination renowned for its "incredible food" and "excellent service." Patrons rave about the "phenomenal" sushi, vibrant atmosphere, and attentive staff. Favorites include the "H2O roll," "Japanese Cowboy," and seasonal specials. Ideal for celebrations, it's a "must-go" for seafood enthusiasts.
4,413 Reviews
  1. Rebecca

    New York City3 reviews

    5.0

    Dined 3 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    I started with the Wedge Salad. It was crisp and fresh. My entree was the Creamy Tuscan Salmon. The salmon was cooked perfectly and the sauce was the perfect compliment. The drink I choose was the Babylon Express. It was so refreshing that I had two : )

    Is this helpful?

  2. Lisa

    New York City16 reviews

    5.0

    Dined 4 days ago

    1. Overall 5
    2. Food 4
    3. Service 5
    4. Ambience 5
    The service was excellent. The food was excellent would definitely go back and the drinks were excellent.!

    Is this helpful?

  3. john VIP

    Las Vegas105 reviews

    5.0

    Dined 7 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    excellent food and service! great restaurant really nice

    Is this helpful?

  4. Denise

    New York City33 reviews

    5.0

    Dined on June 16, 2025

    1. Overall 5
    2. Food 3
    3. Service 5
    4. Ambience 5
    Excellent service people there are super friendly and attentive! Food was just ok. I would go back I have had better meals there!

    Is this helpful?

  5. Joann

    New York City2 reviews

    5.0

    Dined on June 15, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Menu choices were varied and the meals that my family and I got very good (surf&turf and the tuna). The popovers were a little undercooked, but that is the only slightly negative review other than the fact that the noise level was a little high, but that’s to be expected with all the families that were there. Service was very good.

    Is this helpful?

  6. Larry VIP

    New York City65 reviews

    4.0

    Dined on June 15, 2025

    1. Overall 4
    2. Food 4
    3. Service 4
    4. Ambience 4
    Two of us had the mussels for an appetizer and the were very good. The third member of our party had the calamari whidh he enjoyed. For our main course there were two filet mignons wellington which were delicious. There was an order of flounder which was also good. The chocolate cake and gelato desserts were also very enjoyable. Our waiter steve was very good.

    Is this helpful?

  7. David VIP

    New York City283 reviews

    5.0

    Dined on June 11, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Great steak and drinks. Love Brittany and Jeremy. Outstanding service and great selection. The sushi was excellent, loved the H2o roll and the Japanese Cowboy

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  8. Andrea

    Unspecified1 review

    5.0

    Dined on June 10, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 4
    Excellent choice for entertaining our clients visiting from California!

    Is this helpful?

  9. erin

    New York City2 reviews

    5.0

    Dined on June 10, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Our food was phenomenal and our waiter Michael was fantastic!!!! We dine here often and are always happy.

    Is this helpful?

  10. Hyman

    New York City17 reviews

    5.0

    Dined on June 7, 2025

    1. Overall 5
    2. Food 4
    3. Service 5
    4. Ambience 5
    As always both the food and service was outstanding. We shared the mussel appetizer to start and could not stop sipping the broth. The Tuna and Swordfish were both excellent.

    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 4.7 stars by 4413 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 16 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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