Location: Off the coast of southern Thailand’s Trang Province, south of Koh Mook and Koh Ngai.
Speedboat & Ferry travel from koh Kradan to Phuket takes about 3:30 hours, to Phi Phi, just 2:30 hours, and its just 90 minutes to Koh Lanta. Ferry travel to other destinations are follows; Koh Ngai (30 minutes), Koh Mook (30 minutes), Trang (60 minutes), Koh Lipe (3:30 hrs), and Langkawi (5:30 hrs).
The easiest way to travel from Krabi to Koh Kradan is via the (ferry/speed) boat that departs from the Klong Jilad Pier. So whether you are departing from Krabi Airport or Krabi Town you first have to go to the pier to catch the boat to Koh Lanta. From Koh Lanta you take the ferry to Koh Kradan .
To get to Kradan on the same day from Bangkok you need to fly into Trang, get up to the minibus station that has roughly hourly buses to Pak Meng pier or Hat Yao/Ban Chao Mai pier. If you are coming from downtown Trang it is about 2 km from the railway station area on the main road north to Krabi.
The quickest way to get from Koh Kradan to Krabi is to ferry which costs ฿450 – ฿1100 and takes 1h 30m. Is there a direct ferry between Koh Kradan and Krabi ? Yes, there is a direct ferry departing from Phi Phi – Ton Sai and arriving at Krabi Khlong Jilad Pier. Services depart four times a day, and operate every day.