Getting from / going to Krabi.
The most common way to get to Koh Lipe from Krabi is by ferry operated by Tigerline. They generally leave Phuket, via Ko Phi Phi, or Krabi and Ko Lanta to Ko Lipe. Check their timetables for seasonal differences and connecting transport.
There are also many travel agencies selling bus / minivan - speedboat ticketsfrom Krabi via Pak Bara to Koh Lipe.