For dinner, have your table pre-booked at top fish restaurant Poseidon in the fashionable district of Bebek so the yacht can drop you off at the door.
BBC: Choose your own adventure in Turkey
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Those without a Ferrari or luxury yacht can slurp an Anatolian dondurma (ice cream) from Mado in Bebek Park and watch locals fish on the boats that bob in the harbour.
BBC: The rebirth of Istanbul??s Bosphorus
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For another classic Istanbul experience, dine on the catch of the day at the waterfront Bebek Balikci, a 20-minute taxi ride north in the charming village of Bebek, once a separate town now annexed by the city.