About

Sipping margaritas by a sparkling pool on a sunny day next to the water…what could be better during the summer on Long Island? The Seaside Grill, located adjacent to the Hyatt Place Long Island/East End, is the newest seasonal hot spot to hit Long Island’s East End. With views of the lush scenery of the Peconic River, along with the boats dotting the shore at Treasure Cove Resort Marina, patrons can enjoy lunch or sip a cool drink under spa blue umbrellas. Courtesy delivery to Hyatt Place and Treasure Cove Marina Guests!

Seasonal location. We will be closed during inclement weather.

HOURS:
Memorial Day Weekend
Friday: 4pm-11pm
Saturday & Sunday: 11am-11pm
Monday 11am-9pm

May 28-June 20:
Thursday: 11am-9pm
Friday & Saturday: 11am-11pm
Sunday: 11am-9pm

June 24 – Labor Day (9/2)
Monday: 11am-9pm
Tuesday: CLOSED
Wednesday & Thursday: 11am-9pm
Friday & Saturday: 11am-11pm
Sunday: 11am-9pm

Weekends in September:
Friday 4pm-11pm
Saturday: 11am-11pm
Sunday:  11am-9pm


Kitchen closes one hour prior to closing

Weather Permitting

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Sean Fountaine

Executive Chef

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Executive Chef Sean Fountaine has been bestowing his culinary skills to our guests since the opening of Atlantis Banquets & Events in 2000. As a graduate of the renowned Johnson and Wales University, he began his career at several critically acclaimed restaurants in Nantucket, Palm Beach, New Orleans and Memphis before launching his own restaurant in Hampton Bays. In 2005 he earned the Certified Executive Chef Status from the American Culinary Federation. In addition to his work with us, he is also an adjunct professor at Suffolk County Community College in the Culinary Arts Department, specializing in food safety and international cuisine. In 2010 he participated in the EUHOFA International Congress at Johnson and Wales University. Most recently, Chef Fountaine was elected Secretary of the Eastern Long Island Chapter of the American Culinary Federation.