Are Istanbul metro transfers between lines paid separately?

Transfers between Istanbul metro lines require a separate fare each time. You go up an escalator and re-enter the next line's station — all underground, no need to go outside — but you pay again at every transfer. This can be inconvenient with heavy luggage.

If you see a sign for 'metrobus' transfer in Istanbul, be aware: the metrobus is a regular surface-level bus, not an underground metro line — don't confuse the two.

Istanbul ferry terminals are easy to miss — they typically consist of just a small booth, a gangway, and the ferry itself, with no large buildings. Use a map app to find the exact location.