thousands of istanbul citizens change place in istanbul between asian side to european side or reverse for their works or for other reasons..some of them prefer ferries to go one side to another..ferries depart in every 15 minutes from each sides and it takes 25 minutes to cross the sea,reaching the other side of istanbul..i always prefer ferries instead of bridges because of the trafic jam..when sailing,i watch marmara sea,perhaps (rarely)a dolphin following the ferry,seagulls flying around or just read my newspaper and drink the tea they serve..this is one of the routines of my life for many years..