I'm looking at the Tigerline ferries:
http://www.tigerlinetravel.com/index.php?cat=lineboat&new_language=1
and it looks like the journey from Koh Phi Phi to Langkawi takes the entire day since it stops at a multitude of islands along the way (8:30am dep. and arriving 18:00 in Langkawi). Is there a more direct and faster route? perhaps via Satun?
