Whenever I step off the ferry at Karaköy, the first thing that hits me is the distinct, salty breeze rolling off the Bosphorus. Istanbul is a city defined by its water. With the Golden Horn slicing through its European half and the mighty Bosphorus Strait separating two continents, it is impossible to untangle the city's identity from the sea. For a food writer like myself, that means one thing: an endless, incredible supply of fresh fish.

The seafood culture here is deeply woven into the fabric of daily life. It is the rhythmic casting of fishing lines from the Galata Bridge at dawn, the raucous energy of the fish markets, and the quiet clinking of raki glasses over shared plates of meze at dusk. If you want to understand Istanbul, you have to eat from its waters. Over my many visits to this sprawling metropolis, I have scoured both the European and Asian shores to find the absolute best spots to crack into a fresh catch.

Here are the restaurants I always recommend when friends ask me where to eat by the water.

Galata Sanat Restaurant Galata Köprüsü Tucked directly under the iconic Galata Bridge on the Haliç (Golden Horn) side, this restaurant perfectly captures the romantic chaos of the city. With ferries gliding past your table and the glow of the Süleymaniye Mosque in the distance, the atmosphere is unbeatable. However, it is the food that justifies its massive popularity—boasting an impressive 4.8 rating from nearly 9,000 reviews. I always order the grilled levrek (sea bass). They serve it whole, with perfectly charred skin and tender, flaky meat that requires nothing more than a squeeze of fresh lemon and a drizzle of local olive oil. Their cold meze platters are also phenomenal, especially the sea samphire and marinated octopus.

Kadıköy Midyecisi For a completely different, highly local experience, catch a ferry over to the Asian side and walk into the bustling neighborhood of Caferağa. Midye dolma (stuffed mussels) are a quintessential Istanbul street food, and this place elevates them to an art form. Scoring a 4.8 from almost 8,000 reviewers, it is a bustling, no-frills institution. The mussels are plump, served chilled, and packed with an aromatic, spiced rice mixture heavy on black pepper, pine nuts, and cinnamon. You stand around small tables, squeezing lemon wedges over shell after shell until you realize you have eaten two dozen. It is fast, incredibly satisfying, and absolutely mandatory for anyone who loves shellfish.

Galata Sunset Restaurant Also situated under the Galata Bridge, but on the Beyoğlu side, this spot is my go-to for late afternoon dining. Earning a spectacular 4.9 rating from over 3,000 visitors, the restaurant truly lives up to its name. Timing your reservation for the golden hour is non-negotiable. As the sky turns a brilliant amber, the catch of the day arrives on silver platters for your inspection. I highly recommend the seasonal bluefish (lüfer) if you are visiting in the autumn. The chefs here masterfully balance the rich, oily texture of the fish with bright, citrus-forward marinades. Paired with a chilled glass of white wine and the sound of waves lapping against the pier, it is easily one of the best dining experiences in the city.

Divella Bistro Restaurant-Sultanahmet Turkish Cuisine If you find yourself deep in the historic peninsula after a long day of exploring the Hagia Sophia and Topkapı Palace, skip the tourist traps and head straight here. While they serve a broad spectrum of Turkish classics, their approach to seafood is what keeps me coming back. With a 4.8 rating and over 5,600 reviews, Divella has earned the trust of both weary travelers and discerning locals. Their seafood casserole, bubbling in a clay pot with tomatoes, garlic, and a generous melting of kasar cheese, is rich, comforting, and perfect for cooler evenings in the city.

Before you map out your meals, keep a few practical tips in mind. The best time to eat seafood in Istanbul is undoubtedly between September and March, when the waters cool down and the fish are at their fattest and most flavorful. While places like Kadıköy Midyecisi are casual enough to walk right into, you will absolutely need reservations for the sit-down restaurants along the Galata Bridge, especially if you want a table right by the water during sunset.

Price-wise, the city offers something for every budget. A dozen stuffed mussels on the Asian side will cost you pocket change, while a full, multi-course fish dinner with premium mezes and alcohol by the Golden Horn will fall into a higher price bracket—though still incredibly reasonable compared to similar waterfront dining in Western Europe.

Istanbul's relationship with the sea is ancient, proud, and endlessly generous. The next time you find yourself listening to the seagulls call over the Bosphorus, pull up a chair, order the fresh catch, and dig in. Which side of the water will you explore first?