Use the quicklinks below to jump to the desired section regarding transport in and around Ko Kradan.
Whether from the mainland or other islands, most boats pick up and drop off in front of Kradan Beach Resort. The exception is Tigerline, which stops further south near the national park headquarters.
To/from the mainland
Trang town is the main jumping off point for Ko Kradan, with combined minibus/longtail boat transfers available for 450 baht per person from travel agents around the train station during high season. See the Trang transport section for info on getting there and onward transport. On Ko Kradan, onward boat tickets can be purchased at most resorts.
In high season (roughly November to April), minibuses pick up at the train station area in Trang at 09:00 and 11:00, with an additional departure at 16:00 dependent on demand. Upon arrival at Kuan Thung Khu pier on the mainland, you'll be immediately transferred to the boat for the roughly one-hour cruise to Kradan. Boats return to Kuan Thung Khu and a waiting minibus from Kradan at 09:00 and 12:00.
There are no shared boats to/from Kradan in low season. A private transfer will run 2,200 baht all up from Trang (per group, not per person). You could also take the local ferry to Ko Muk and arrange for a private longtail from there, which should save you a good 500 baht but would be more of a hassle.
From November 1 to March 31 (Tigerline may run into April), speedboats and ferries connect Ko Kradan directly to a number of other islands. Tickets can be booked through any resort on Ko Kradan; whoever sells you the ticket will need to call ahead to tell your boat of choice to stop here, so it's best to give them prior notice.
Heading north, the Satun Pakbara speedboat picks up on Kradan at 10:45 and reaches Ko Muk at 11:00 for 300 baht; Ko Ngai at 11:30 for 400 baht; and Ko Lanta at 12:00 for 1,150 baht. Passengers heading to Ko Phi Phi, Phuket, Ko Jum and Krabi can make a transfer on Lanta.
The cheaper/slower Petpailin ferry also runs to Kradan, picking up at around 10:30 and stopping at Ko Muk on the way to Ko Lanta. This option can include a direct transfer to Ko Phi Phi or Phuket.
Heading south, the speedboat picks up on Kradan at 11:45 and reaches Ko Bulon Lae at 12:30 for 900 baht; and Ko Lipe at 13:30 for 1,400 baht.
The speedboat to Ko Kradan departs Ko Lipe at 09:00; Ko Bulon Lae at 10:00; Ko Lanta at 10:30; Ko Kradan at 11:00; and Ko Muk at 11:30.
A bit slower/cheaper than the speedboats, the Tigerline ferry connects Ko Kradan directly to Ko Phi Phi, Phuket, Hat Yao pier in Trang, and Langkawi island in Malaysia, plus all of the other islands listed above except Ko Bulon Lae. The southbound boat departs Phuket at 08:00 and picks up on Ko Kradan at 11:30, while the northbound boat departs Langkawi at 09:00 and picks up on Kradan at 13:30. More info and booking at www.tigerlinetravel.com.
You can also take a private longtail boat to Ko Muk or Ko Ngai for between 800 and 1,200 baht. Ko Libong can be reached directly by (expensive) private longtail transfer; you're probably better off heading back to Trang and heading to either Libong or Ko Sukorn from there.