Grilled octopus salad, with tomato, onion, and potato slices on...

Grilled octopus salad, with  tomato, onion, and potato slices on greens, is an appetizer at Catch Oyster Bar in Patchogue. Credit: Daniel Brennan

This summer, there’s a major catch of seafood restaurants to visit in Nassau and Suffolk. Here are three establishments that are sure to hook you.

Catch Oyster Bar in Patchogue seats about 30 contented diners. It’s a casual spot with dependably fine fare. Recommended: all raw oysters, fried oyster po’boy, baked clam “stuffies,” bluefin tuna crudo, grilled octopus salad, New England- and Manhattan-style clam chowders, and South Shore fish stew with squid, cod, and shellfish. $$-$$$

Catch Oyster Bar, 63 N. Ocean Ave., Patchogue, 631-627-6860,

You’ll want to order whole fish by the pound at Kyma, a stellar and handsome Greek and seafood restaurant in Roslyn. Recommended: whole royal dorado, pompano, black sea bass, red snapper, and Mediterranean pink snapper, or fagri; grilled octopus, grilled calamari, grilled shrimp, crabcake, and raw bar selections. $$$-$$$$

Kyma, 1446 Old Northern Blvd., Roslyn, 516-621-3700,

Lulu Kitchen & Bar is new in Sag Harbor. Seafood is among the many specialties offered with flair in the handsome dining rooms. Recommended: local oysters, shrimp cocktail, tuna tartare, grilled Spanish octopus, grilled prawns, fish and chips made with cod, snow crab claws, grilled squid, and steamed mussels. $$$

Lulu Kitchen & Bar, 126 Main St., Sag Harbor, 631-725-0900,

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