Private Parties at H2O 2019-02-01T17:56:53+00:00
Book Your Private Party

Private Parties at H2O

H2O: Seafood and Sushi in East Islip has the charm of a cozy New England fish house married with the luxury a world class sushi and raw program can bring. Our upstairs dining room is the perfect space for any private event.

H2O Topside

a bright space for good times

Our private upstairs space can host up to 55 guests, featuring large tables and a charmingly cozy atmosphere.

Private space for groups up to 55
Your Party, Your Menu

Party Menus

With extensive food and beverage menu options your party will be like no other.

Brunch, lunch, and dinner
Price fixed menus tailored
for every budget
See Our Party Menus
An event to remember

Celebrate it
All in Style

No matter the occasion, leave your guests speechless.

Engagement Parties
Milestone Birthdays
Baby & Bridal Showers
Book Your Private Party

Amenities & Options


We can tailor a cocktail list that reflects your theme or we can cater to your guests’ needs with selections from extensive beverage and wine lists.


H2O has the backing of the experienced team at the Bohlsen Restaurant Group who have been hosting and executing many of the seminal moments of our guests’ lives. Let that experience work for you.


H2O boasts an experienced and professional service staff, trained by the team at the Bohlsen Restaurant Group. Let our team of service professionals take the pressure off of you


Enjoy steaks, chicken and world class sushi as well as a wide variety of seafood from across the globe alongside selections from our local waters.

Contact Us About Your Private Party

Learn more about how we can craft your next big day by reaching out to our private events coordinator.

Let’s Celebrate Together! - Contact us!
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