So one can descend to the metro at Sirkeci and after a while surface on ground at Üsküdar now? And this metro line works as regularly as any other line, right?

I think it does but not sure if it is safe! 

http://www.marmaray.gov.tr/icerik/sefer/G%C3%BCnl%C3%BCk-Tren-Saatleri/59

Thanks scalpel. I kind of read it but don´t believe. Need eyewitnesses.

Hey but this is too easy now. No adventure at all.

i used marmaray a few times between kazlicesme and uskudar passing through sirkesi. the fastest travelling option available yet between european and anatoian sides. they will extend the lines soon.