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H2O: Seafood & Sushi, Smithtown, NY

H2O: Seafood & Sushi

4.8
4.8
4378 Reviews
$31 to $50
Seafood
215 West Main Street, Smithtown, NY 11787

Make a reservation

2 people
7:00 PM
Booked 36 times today
Experiences are available.

About this restaurant

  • Good for special occasions
  • Neighborhood gem
  • Great for creative cocktails
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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Experiences

  • Long Island Restaurant Week at H2O

    Apr 27, 2025 - May 4, 2025
    Let's welcome the new season together with our $46 3-Course Long Island Restaurant Week menu, available Sunday, April 27th through Sunday, May 4th! Visit our website to check out the full menu now. Reservations strongly suggested. Price is before tax and gratuity. Our full main menu will not be available during this time (sushi offerings will be available).
    Long Island Restaurant Week at H2O Photo
  • Mother's Day Sunday at H2O

    May 11, 2025 only
    Celebrate Mom with an unforgettable three-course feast at H2O Seafood & Sushi this Mother’s Day! 💐 Enjoy your favorite seafood, sushi, and steaks with a special prix fixe menu designed to delight. ✨ 3-Course Dinner Prix Fixe: $85++ Adults | $35++ Children 2–11 | Under 2 Dine Free Please note that our regular menu will be unavailable on Mother's Day. All pricing is plus tax and gratuity. We require a credit card to hold your reservation. There will be a $50/pp penalty charge for cancellations less than 48 hours in advance and no-shows.

What 4,378 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

4.8
4.8 based on recent ratings
  • 4.8Food
  • 4.8Service
  • 4.6Ambience
  • 4.5Value

NoiseModerate

Loved For

  • New York State

    Seafood

Review summary

AI-generated from verified diner reviews
H2O: Seafood & Sushi offers "excellent food" and "wonderful staff," creating a "great experience" for any occasion. Guests rave about dishes like "tuna nachos" and "shrimp and lobster wontons," while friendly, attentive service enhances the dining experience. Celebrations here are made special with thoughtful touches, making it a must-visit spot.

4,378 Reviews
  1. peter

    Unspecified1 review

    5.0

    Dined 1 day ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    All six entrees were outstanding and service was impeccable…thank you Janine!

    Is this helpful?

  2. Marian VIP

    Atlantic City18 reviews

    5.0

    Dined 7 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We love H2O. The food is consistently delicious and beautifully presented. We have big family dinners as well as smaller ones there. The staff is friendly and courteous. The ambience is also warm ,fun and inviting.

    Is this helpful?

  3. James

    New York City1 review

    5.0

    Dined 7 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    First visit to H2O with a party of 5 for Easter Sunday. The restaurant design is outstanding__clean, bright, and upscale-casual, with lots of seating options (booths, tables, bar, and outdoor seating). Wait service was also outstanding--thank you, Maria! We enjoyed all our selections from the special holiday menu: scallops, shrimp dishes, sushi roll, and wontons. All were fresh and perfectly prepared. The lobster ravioli earned a special nod from one of us: "best ravioli I've ever had!" Lots of options for wine by the glass, and excellent cocktails. We'll be back!

    Is this helpful?

  4. Christine

    New York City5 reviews

    5.0

    Dined 7 days ago

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    We went for Easter and it was wonderful. Food was amazing. Service was excellent.

    Is this helpful?

  5. Diana

    New York City8 reviews

    5.0

    Dined on April 18, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Just fabulous is all I can say always have a wonderful meal at H2O

    Is this helpful?

  6. Brian

    New York City8 reviews

    5.0

    Dined on April 13, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Always a great experience at H2O. Food is excellent and the staff make you feel special. Highly reccomend.

    Is this helpful?

  7. Josephine VIP

    New York City2 reviews

    5.0

    Dined on April 10, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Went there for my son’s 18th birthday. His choice. He loves it, I love it more. With a super picky/basic palate he loves their tuna nachos. The service was great and food was outstanding. Becoming a favorite!

    Is this helpful?

  8. David VIP

    New York City270 reviews

    5.0

    Dined on April 9, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    The shrimp and lobster won tons were excellent! The hamburger was cooked beautifully and we loved the French fries!

    Is this helpful?

  9. Luis

    New York City1 review

    5.0

    Dined on April 7, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Excellent food, great drinks, wonderful staff. Waiter was perfect.

    Is this helpful?

  10. Patricia VIP

    New York City19 reviews

    5.0

    Dined on April 5, 2025

    1. Overall 5
    2. Food 5
    3. Service 5
    4. Ambience 5
    Wonderful dinner as always! Great dinner and great service!

    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 4.8 stars by 4378 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 36 times today
Experiences are available.
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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