First-time Istanbul plans go wrong in one predictable way: travellers decide Europe and Asia must both be 'done', then spend their days in ferries and traffic. The city's real logic is simpler — stay on one side, let the Bosphorus be your commute, and cross when it feels like a treat rather than a checkbox.
Pick a side and commit
One of your first decisions is where to base yourself. Sultanahmet keeps the Hagia Sophia and Grand Bazaar walkable; Karaköy and Galata give you the food and meyhane life near the Istanbul heart. Both are defensible — just don't try to sleep in both, or you'll burn your mornings on a bridge commute.
Make the ferry the plan
The Bosphorus cruise and commuter ferries from Eminönü to Kadıköy are cheap, fast and genuinely lovely — the city looks best from the water. A late-afternoon crossing to the Asian side for dinner is one of the great free experiences in travel: sunset over the Istanbul skyline, meze on a street table, and a ferry home with the lights on.
Budget the bazaars
The Grand Bazaar and Spice Bazaar are experiences, not shopping lists. Decades of travellers agree: browse Istanbul, buy small, and know that the first price is a starting point. Leave far more money for the food — a great kebab and a proper fish sandwich by the Ortaköy pier beat another souvenir every single time.